FLTK msys2 initial step fails

[Mark Olesen]

Completely new install of Windows 10 and msys2 and fltk from git

NOCONFIGURE=1 ./autogen.sh

fails

see screenshot for details

[lifeatt...@gmail.com]

Did you try any of the steps in the answer to this stack overflow question?

https://stackoverflow.com/questions/16188335/automake-error-no-proper-invocation-of-am-init-automake-was-found

[Mark Olesen]

That fixes the issue to generate a configure script. However, why not address the bigger problem and fix it permanently?

[Mark Olesen]

btw: fltk still fails to compile because it thinks it is a non-mingw system

$ make
=== making jpeg ===
=== making zlib ===
=== making png ===
=== making src ===
make[1]: Entering directory '/home/Mark J Olesen/opensource/fltk/src'
Compiling Fl.cxx...
In file included from Fl.cxx:22:
../FL/platform.H:51:14: fatal error: X11/Xlib.h: No such file or directory
   51 | #    include <X11/Xlib.h>
      |              ^~~~~~~~~~~~
compilation terminated.
make[1]: *** [../makeinclude:167: Fl.o] Error 1
make[1]: Leaving directory '/home/Mark J Olesen/opensource/fltk/src'
make: *** [Makefile:22: all] Error 1

[wea...@gmail.com]

On Wednesday, November 24, 2021 at 3:46:51 AM UTC+1 markj...@gmail.com wrote:

Completely new install of Windows 10 and msys2 and fltk from git

NOCONFIGURE=1 ./autogen.sh

 

Have you tried the cmake version instead of autogen?

[Ian MacArthur]

On Wednesday, 24 November 2021 at 02:46:51 UTC markj wrote:

Completely new install of Windows 10 and msys2 and fltk from git

NOCONFIGURE=1 ./autogen.sh

fails

Huh! I've never seen that... Do you know what version of the autotools is bundled with your mingw/Msys2 setup?

This is an "it has always worked for me" sort of answer, but I think I have a pretty old version of the autotools in my tarball that I use for setting up new machines, so it may be immune.

FWIW, and this might be worth a shot too, I don't do the "NOCONFIGURE=1 ./autogen.sh" approach at all generally - rather, I just type "make" in the top of the clean checkout. The fltk Makefile then detects that autoconf et al have not run, sets up the defaults and the missing config bits, and runs the configure (with default values) and builds OK.

If I want non-default configure options, I break in at this point and re-run "./configure" manually with the needed settings...

So far, this Just Works... Here's a grab of what that looks like, from a clean sheet...

/d/Support

$ git clone https://github.com/fltk/fltk.git fl_test

Cloning into 'fl_test'...

remote: Enumerating objects: 75607, done.

remote: Counting objects: 100% (1624/1624), done.

remote: Compressing objects: 100% (854/854), done.

remote: Total 75607 (delta 969), reused 1260 (delta 762), pack-reused 73983

Receiving objects: 100% (75607/75607), 28.24 MiB | 2.75 MiB/s, done.

Resolving deltas: 100% (61795/61795), done.

Updating files: 100% (1333/1333), done.

/d/Support

$ cd fl_test

/d/Support/fl_test (master)

$ make

Makefile:17: makeinclude: No such file or directory

autoconf

if test -f config.status; then \

                ./config.status --recheck; \

                ./config.status; \

        else \

                ./configure; \

        fi

checking build system type... x86_64-pc-mingw64

checking host system type... x86_64-pc-mingw64

checking for gcc... gcc

checking for gcc... gcc

checking whether the C compiler works... yes

checking for C compiler default output file name... a.exe

checking for suffix of executables... .exe

checking whether we are cross compiling... no

checking for suffix of object files... o

checking whether we are using the GNU C compiler... yes

checking whether gcc accepts -g... yes

checking for gcc option to accept ISO C89... none needed

checking for g++... g++

checking whether we are using the GNU C++ compiler... yes

checking whether g++ accepts -g... yes

checking for pkg-config... no

checking for wtypes.h... yes

checking for gdiplus.h... yes

checking for a BSD-compatible install... /usr/bin/install -c

checking for nroff... no

checking for groff... no

checking for doxygen... /d/Tools/doxygen/bin/doxygen

checking for ranlib... ranlib

(etc...)

[Albrecht Schlosser]

Your home directory ('/home/Mark J Olesen') contains spaces which could
not be handled by the script.

I fixed the script and the README files, this should no longer be the case.

Note: There's no guarantee though that the build works if the FLTK tree
is in a directory whose path contains one or more spaces.

Anyway: see new instructions in README.Windows.txt (git commit
ef1c2d5b2686):

If you got FLTK via git then you need one extra step. Otherwise skip
over this part. Stay in your FLTK source-code directory and type the
following:

  autoconf

Now configure your FLTK installation:

  ./configure

Hint: Instead of executing `autoconf` and `configure` followed by `make`
to build FLTK (see next section) you can also run `make` directly which
will create and execute the 'configure' script with default parameters
and build FLTK with the default configuration.

(End of citation)

I hope this is helpful and simplifies the configuration task.

I also hope that I can find the time to update all build instructions
which are partly outdated (as seen above) before we release 1.4.0.

[Albrecht Schlosser]

On 11/24/21 5:04 AM Mark Olesen wrote:
> btw: fltk still fails to compile because it thinks it is a non-mingw
> system
>
> $ make
> === making jpeg ===
> === making zlib ===
> === making png ===
> === making src ===
> make[1]: Entering directory '/home/Mark J Olesen/opensource/fltk/src'
> Compiling Fl.cxx...
> In file included from Fl.cxx:22:
> ../FL/platform.H:51:14: fatal error: X11/Xlib.h: No such file or directory
>    51 | #    include <X11/Xlib.h>
>       |              ^~~~~~~~~~~~
> compilation terminated.
> make[1]: *** [../makeinclude:167: Fl.o] Error 1
> make[1]: Leaving directory '/home/Mark J Olesen/opensource/fltk/src'
> make: *** [Makefile:22: all] Error 1

This *may* be caused by using the "wrong" make program. MSYS(2) has
several different `make` tools which you need to install "correctly" for
whatever you want to achieve. Can you please try to run

$ mingw32-make

instead of `make`. Does this make a difference? Does it work?



PS: please don't top-post in this group. Thanks.

[Mark Olesen]

Mark J Olesen@DESKTOP-64I0KOO MINGW64 ~/opensource/fltk
$ autoconf

Mark J Olesen@DESKTOP-64I0KOO MINGW64 ~/opensource/fltk
$ ./configure
configure: loading site script /etc/config.site
checking build system type... x86_64-w64-mingw32
checking host system type... x86_64-w64-mingw32

checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.exe
checking for suffix of executables... .exe
checking whether we are cross compiling... no
checking for suffix of object files... o

checking whether the compiler supports GNU C... yes

checking whether gcc accepts -g... yes

checking for gcc option to enable C11 features... none needed
checking for g++... g++
checking whether the compiler supports GNU C++... yes

checking whether g++ accepts -g... yes

checking for g++ option to enable C++11 features... none needed
checking for pkg-config... /usr/bin/pkg-config

checking for wtypes.h... yes
checking for gdiplus.h... yes
checking for a BSD-compatible install... /usr/bin/install -c

checking for nroff... /usr/bin/nroff
checking for doxygen... no
checking for ranlib... ranlib
checking for ar... /usr/bin/ar
checking for windres... /usr/bin/windres
checking for stdio.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for strings.h... yes
checking for sys/stat.h... yes
checking for sys/types.h... yes
checking for unistd.h... yes
checking size of short... 2
checking size of int... 4
checking size of long... 8
checking whether byte ordering is bigendian... no
checking whether the compiler recognizes bool as a built-in type... yes
checking for dirent.h that defines DIR... yes
checking for library containing opendir... none required
checking for sys/select.h... yes
checking for sys/stdtypes.h... no
checking whether we have the POSIX compatible scandir() prototype... yes
checking for vsnprintf... yes
checking for snprintf... yes
checking for strings.h... (cached) yes
checking for strcasecmp... yes
checking for strlcat... yes
checking for strlcpy... yes
checking for locale.h... yes
checking for localeconv... yes
checking for library containing pow... none required
checking for special C compiler options needed for large files... no
checking for _FILE_OFFSET_BITS value needed for large files... no
checking for long long int... yes
checking for library containing dlsym... none required
checking for dlfcn.h... yes
checking for gzgets in -lz... no
checking for png_read_info in -lpng... no
checking for jpeg_CreateCompress in -ljpeg... no
checking how to run the C preprocessor... gcc -E
checking for X... no
checking for GL/gl.h... yes
checking for GL/glu.h... yes
checking if GCC supports -fno-exceptions... yes
checking if GCC supports -fno-strict-aliasing... yes
checking if ld supports -no-undefined... yes
checking if ld supports -Bsymbolic-functions... yes
checking if toolchain supports sections... yes

Configuration Summary
-------------------------------------------------------------------------
    Directories: prefix=/mingw64
                 bindir=${exec_prefix}/bin
                 datadir=${datarootdir}
                 datarootdir=${prefix}/share
                 exec_prefix=${prefix}
                 includedir=${prefix}/include
                 libdir=${exec_prefix}/lib
                 mandir=${datarootdir}/man
                 MSys docpath=/local/share/doc/fltk
Cross-compiling: no
       Graphics: GDI+
Image Libraries: JPEG=Builtin
                 PNG=Builtin
                 ZLIB=Builtin
    Large Files: YES
         OpenGL: YES
        Threads: YES
configure: creating ./config.status
config.status: creating makeinclude
config.status: creating fltk.list
config.status: creating fltk-config
config.status: creating fltk.spec
config.status: creating FL/Makefile
config.status: creating config.h
config.status: config.h is unchanged
config.status: creating FL/abi-version.h
config.status: FL/abi-version.h is unchanged

Mark J Olesen@DESKTOP-64I0KOO MINGW64 ~/opensource/fltk

$ make
=== making jpeg ===

make[1]: Entering directory '/home/Mark J Olesen/opensource/fltk/jpeg'
Compiling jaricom.c...
Compiling jcapimin.c...
Compiling jcapistd.c...
Compiling jcarith.c...
Compiling jccoefct.c...
Compiling jccolor.c...
Compiling jcdctmgr.c...
Compiling jchuff.c...
Compiling jcinit.c...
Compiling jcmainct.c...
Compiling jcmarker.c...
Compiling jcmaster.c...
Compiling jcomapi.c...
Compiling jcparam.c...
Compiling jcprepct.c...
Compiling jcsample.c...
Compiling jctrans.c...
Compiling jdapimin.c...
Compiling jdapistd.c...
Compiling jdarith.c...
Compiling jdatadst.c...
Compiling jdatasrc.c...
Compiling jdcoefct.c...
Compiling jdcolor.c...
Compiling jddctmgr.c...
Compiling jdhuff.c...
Compiling jdinput.c...
Compiling jdmainct.c...
Compiling jdmarker.c...
Compiling jdmaster.c...
Compiling jdmerge.c...
Compiling jdpostct.c...
Compiling jdsample.c...
Compiling jdtrans.c...
Compiling jerror.c...
Compiling jfdctflt.c...
Compiling jfdctfst.c...
Compiling jfdctint.c...
Compiling jidctflt.c...
Compiling jidctfst.c...
Compiling jidctint.c...
Compiling jmemmgr.c...
Compiling jmemnobs.c...
Compiling jquant1.c...
Compiling jquant2.c...
Compiling jutils.c...
Archiving ../lib/libfltk_jpeg.a...
make[1]: Leaving directory '/home/Mark J Olesen/opensource/fltk/jpeg'
=== making zlib ===
make[1]: Entering directory '/home/Mark J Olesen/opensource/fltk/zlib'
Compiling adler32.c...
Compiling compress.c...
Compiling crc32.c...
Compiling uncompr.c...
Compiling deflate.c...
Compiling trees.c...
Compiling zutil.c...
Compiling inflate.c...
Compiling inftrees.c...
Compiling inffast.c...
Compiling gzclose.c...
Compiling gzlib.c...
gzlib.c: In function ‘gz_open’:
gzlib.c:243:20: warning: implicit declaration of function ‘_wopen’; did you mean ‘fwopen’? [-Wimplicit-function-declaration]
  243 |         fd == -2 ? _wopen(path, oflag, 0666) :
      |                    ^~~~~~
      |                    fwopen
Compiling gzread.c...
Compiling gzwrite.c...
Compiling infback.c...
Archiving ../lib/libfltk_z.a...
make[1]: Leaving directory '/home/Mark J Olesen/opensource/fltk/zlib'
=== making png ===
make[1]: Entering directory '/home/Mark J Olesen/opensource/fltk/png'
Compiling png.c...
Compiling pngset.c...
Compiling pngget.c...
Compiling pngrutil.c...
Compiling pngtrans.c...
Compiling pngwutil.c...
Compiling pngread.c...
Compiling pngrio.c...
Compiling pngwio.c...
Compiling pngwrite.c...
Compiling pngrtran.c...
Compiling pngwtran.c...
Compiling pngmem.c...
Compiling pngerror.c...
Compiling pngpread.c...
Compiling arm/arm_init.c...
Compiling arm/filter_neon_intrinsics.c...
Compiling arm/palette_neon_intrinsics.c...
Archiving ../lib/libfltk_png.a...
make[1]: Leaving directory '/home/Mark J Olesen/opensource/fltk/png'

=== making src ===
make[1]: Entering directory '/home/Mark J Olesen/opensource/fltk/src'
Compiling Fl.cxx...
In file included from Fl.cxx:22:
../FL/platform.H:51:14: fatal error: X11/Xlib.h: No such file or directory
   51 | #    include <X11/Xlib.h>
      |              ^~~~~~~~~~~~
compilation terminated.
make[1]: *** [../makeinclude:167: Fl.o] Error 1
make[1]: Leaving directory '/home/Mark J Olesen/opensource/fltk/src'
make: *** [Makefile:22: all] Error 1

Mark J Olesen@DESKTOP-64I0KOO MINGW64 ~/opensource/fltk
$ mingw32-make
bash: mingw32-make: command not found

Mark J Olesen@DESKTOP-64I0KOO MINGW64 ~/opensource/fltk
$ ls /usr/bin/*make*
/usr/bin/automake       /usr/bin/automake-1.16  /usr/bin/make.exe
/usr/bin/automake-1.10  /usr/bin/automake-1.6   /usr/bin/makeinfo
/usr/bin/automake-1.11  /usr/bin/automake-1.7   /usr/bin/makepkg
/usr/bin/automake-1.12  /usr/bin/automake-1.8   /usr/bin/makepkg-mingw
/usr/bin/automake-1.13  /usr/bin/automake-1.9   /usr/bin/makepkg-template
/usr/bin/automake-1.14  /usr/bin/ccmake.exe     /usr/bin/psl-make-dafsa
/usr/bin/automake-1.15  /usr/bin/cmake.exe

Mark J Olesen@DESKTOP-64I0KOO MINGW64 ~/opensource/fltk
$

Mark J Olesen@DESKTOP-64I0KOO MINGW64 ~/opensource/fltk
$ /usr/bin/x86_64-pc-msys-g++.exe -dM -E -x c++ - < /dev/null
#define __DBL_MIN_EXP__ (-1021)
#define __cpp_attributes 200809L
#define __UINT_LEAST16_MAX__ 0xffff
#define __ATOMIC_ACQUIRE 2
#define __FLT128_MAX_10_EXP__ 4932
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#define __GCC_IEC_559_COMPLEX 2
#define __cpp_aggregate_nsdmi 201304L
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#define __CHAR_BIT__ 8
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#define __SCHAR_WIDTH__ 8
#define __WINT_MAX__ 0xffffffffU
#define __FLT32_MIN_EXP__ (-125)
#define __cpp_static_assert 200410L
#define __ORDER_LITTLE_ENDIAN__ 1234
#define __SIZE_MAX__ 0xffffffffffffffffUL
#define __WCHAR_MAX__ 0xffff
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1
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#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 1
#define __DBL_DENORM_MIN__ double(4.94065645841246544176568792868221372e-324L)
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 1
#define __GCC_ATOMIC_CHAR_LOCK_FREE 2
#define __GCC_IEC_559 2
#define __FLT32X_DECIMAL_DIG__ 17
#define __FLT_EVAL_METHOD__ 0
#define __cpp_binary_literals 201304L
#define __FLT64_DECIMAL_DIG__ 17
#define __GCC_ATOMIC_CHAR32_T_LOCK_FREE 2
#define __cpp_variadic_templates 200704L
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#define __DBL_MIN_10_EXP__ (-307)
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#define __cpp_variable_templates 201304L
#define __FLT32X_MAX_EXP__ 1024
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#define _stdcall __attribute__((__stdcall__))
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#define __GCC_ATOMIC_BOOL_LOCK_FREE 2
#define __FLT128_DENORM_MIN__ 6.47517511943802511092443895822764655e-4966F128
#define __UINTMAX_TYPE__ long unsigned int
#define __DEC32_EPSILON__ 1E-6DF
#define __FLT_EVAL_METHOD_TS_18661_3__ 0
#define __unix 1
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#define __GXX_EXPERIMENTAL_CXX0X__ 1
#define __FLT128_MIN_EXP__ (-16381)
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#define __WCHAR_MIN__ 0
#define __INT64_C(c) c ## L
#define __GCC_ATOMIC_POINTER_LOCK_FREE 2
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#define __GCC_ATOMIC_CHAR16_T_LOCK_FREE 2
#define __USER_LABEL_PREFIX__
#define __FLT64X_EPSILON__ 1.08420217248550443400745280086994171e-19F64x
#define __STDC_HOSTED__ 1
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#define __cpp_decltype_auto 201304L
#define __DBL_DIG__ 15
#define __FLT32_DIG__ 6
#define __FLT_EPSILON__ 1.19209289550781250000000000000000000e-7F
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#define __FLT64X_DENORM_MIN__ 3.64519953188247460252840593361941982e-4951F64x
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#define __DECIMAL_DIG__ 21
#define __FLT64_EPSILON__ 2.22044604925031308084726333618164062e-16F64
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#define __LDBL_HAS_QUIET_NAN__ 1
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#define __FLT64X_MANT_DIG__ 64
#define __GNUC__ 10
#define _cdecl __attribute__((__cdecl__))
#define __GXX_RTTI 1
#define __MMX__ 1
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#define __STDC_UTF_16__ 1
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#define __cpp_delegating_constructors 200604L
#define __MSYS__ 1
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#define __DBL_MAX__ double(1.79769313486231570814527423731704357e+308L)
#define _thiscall __attribute__((__thiscall__))
#define __cpp_raw_strings 200710L
#define __INT_FAST32_MAX__ 0x7fffffffffffffffL
#define __DBL_HAS_INFINITY__ 1
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#define __DEC32_MIN_EXP__ (-94)
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#define __FLT64X_HAS_INFINITY__ 1
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#define __FLT32X_HAS_DENORM__ 1
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#define __MMX_WITH_SSE__ 1
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#define __cpp_ref_qualifiers 200710L
#define __DEC32_MIN__ 1E-95DF
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#define __FLT64X_MIN_EXP__ (-16381)
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#define __INT_FAST64_TYPE__ long int
#define __FLT64_DENORM_MIN__ 4.94065645841246544176568792868221372e-324F64
#define __DBL_MIN__ double(2.22507385850720138309023271733240406e-308L)
#define __FLT128_EPSILON__ 1.92592994438723585305597794258492732e-34F128
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#define __FLT128_DIG__ 33
#define __INT32_C(c) c
#define __DEC64_EPSILON__ 1E-15DD
#define __ORDER_PDP_ENDIAN__ 3412
#define __DEC128_MIN_EXP__ (-6142)
#define __INT_FAST32_TYPE__ long int
#define __UINT_LEAST16_TYPE__ short unsigned int
#define unix 1
#define __DBL_HAS_DENORM__ 1
#define __cpp_rtti 199711L
#define __UINT64_MAX__ 0xffffffffffffffffUL
#define __FLT64X_DIG__ 18
#define __INT8_TYPE__ signed char
#define __cpp_digit_separators 201309L
#define __GCC_ASM_FLAG_OUTPUTS__ 1
#define __UINT32_TYPE__ unsigned int
#define __FLT_RADIX__ 2
#define __INT_LEAST16_TYPE__ short int
#define __LDBL_EPSILON__ 1.08420217248550443400745280086994171e-19L
#define __UINTMAX_C(c) c ## UL
#define __GLIBCXX_BITSIZE_INT_N_0 128
#define __k8 1
#define __FLT32X_MIN__ 2.22507385850720138309023271733240406e-308F32x
#define __SIG_ATOMIC_MAX__ 0x7fffffff
#define __GCC_ATOMIC_WCHAR_T_LOCK_FREE 2
#define __SIZEOF_PTRDIFF_T__ 8
#define __LDBL_DIG__ 18
#define __CYGWIN__ 1
#define __x86_64__ 1
#define __FLT32X_MIN_EXP__ (-1021)
#define __DEC32_SUBNORMAL_MIN__ 0.000001E-95DF
#define __INT_FAST16_MAX__ 0x7fffffffffffffffL
#define __FLT64_DIG__ 15
#define __UINT_FAST32_MAX__ 0xffffffffffffffffUL
#define __UINT_LEAST64_TYPE__ long unsigned int
#define __FLT_HAS_QUIET_NAN__ 1
#define __FLT_MAX_10_EXP__ 38
#define __LONG_MAX__ 0x7fffffffffffffffL
#define __FLT64X_HAS_DENORM__ 1
#define __DEC128_SUBNORMAL_MIN__ 0.000000000000000000000000000000001E-6143DL
#define __FLT_HAS_INFINITY__ 1
#define __cpp_unicode_literals 200710L
#define __UINT_FAST16_TYPE__ long unsigned int
#define __DEC64_MAX__ 9.999999999999999E384DD
#define __INT_FAST32_WIDTH__ 64
#define __CHAR16_TYPE__ short unsigned int
#define __PRAGMA_REDEFINE_EXTNAME 1
#define __SIZE_WIDTH__ 64
#define __SEG_FS 1
#define __INT_LEAST16_MAX__ 0x7fff
#define __DEC64_MANT_DIG__ 16
#define __INT64_MAX__ 0x7fffffffffffffffL
#define __SEG_GS 1
#define __FLT32_DENORM_MIN__ 1.40129846432481707092372958328991613e-45F32
#define __SIG_ATOMIC_WIDTH__ 32
#define __INT_LEAST64_TYPE__ long int
#define __INT16_TYPE__ short int
#define __INT_LEAST8_TYPE__ signed char
#define __SIZEOF_INT__ 4
#define __DEC32_MAX_EXP__ 97
#define __INT_FAST8_MAX__ 0x7f
#define __FLT128_MAX__ 1.18973149535723176508575932662800702e+4932F128
#define __INTPTR_MAX__ 0x7fffffffffffffffL
#define __cpp_sized_deallocation 201309L
#define __FLT64_HAS_QUIET_NAN__ 1
#define __stdcall __attribute__((__stdcall__))
#define __FLT32_MIN_10_EXP__ (-37)
#define __EXCEPTIONS 1
#define __GXX_MERGED_TYPEINFO_NAMES 0
#define __PTRDIFF_WIDTH__ 64
#define __LDBL_MANT_DIG__ 64
#define __cpp_range_based_for 200907L
#define __FLT64_HAS_INFINITY__ 1
#define __FLT64X_MAX__ 1.18973149535723176502126385303097021e+4932F64x
#define __SIG_ATOMIC_MIN__ (-__SIG_ATOMIC_MAX__ - 1)
#define __GCC_ATOMIC_LONG_LOCK_FREE 2
#define __DEC32_MANT_DIG__ 7
#define __cpp_return_type_deduction 201304L
#define __k8__ 1
#define __INTPTR_TYPE__ long int
#define __UINT16_TYPE__ short unsigned int
#define __WCHAR_TYPE__ short unsigned int
#define __pic__ 1
#define __UINTPTR_MAX__ 0xffffffffffffffffUL
#define __INT_FAST64_WIDTH__ 64
#define __cpp_decltype 200707L
#define __INT_FAST64_MAX__ 0x7fffffffffffffffL
#define __GCC_ATOMIC_TEST_AND_SET_TRUEVAL 1
#define __FLT_NORM_MAX__ 3.40282346638528859811704183484516925e+38F
#define __FLT64X_MAX_EXP__ 16384
#define __UINT_FAST64_TYPE__ long unsigned int
#define __INT_MAX__ 0x7fffffff
#define __code_model_medium__ 1
#define __INT64_TYPE__ long int
#define __FLT_MAX_EXP__ 128
#define __ORDER_BIG_ENDIAN__ 4321
#define __DBL_MANT_DIG__ 53
#define __cpp_inheriting_constructors 201511L
#define __SIZEOF_FLOAT128__ 16
#define __INT_LEAST64_MAX__ 0x7fffffffffffffffL
#define __DEC64_MIN__ 1E-383DD
#define __WINT_TYPE__ unsigned int
#define __UINT_LEAST32_TYPE__ unsigned int
#define __SIZEOF_SHORT__ 2
#define __FLT32_NORM_MAX__ 3.40282346638528859811704183484516925e+38F32
#define __SSE__ 1
#define __LDBL_MIN_EXP__ (-16381)
#define __FLT64_MAX__ 1.79769313486231570814527423731704357e+308F64
#define __amd64__ 1
#define __WINT_WIDTH__ 32
#define __INT_LEAST8_MAX__ 0x7f
#define __INT_LEAST64_WIDTH__ 64
#define __LDBL_MAX_EXP__ 16384
#define __FLT32X_MAX_10_EXP__ 308
#define __SIZEOF_INT128__ 16
#define __WCHAR_UNSIGNED__ 1
#define __LDBL_MAX_10_EXP__ 4932
#define __ATOMIC_RELAXED 0
#define __DBL_EPSILON__ double(2.22044604925031308084726333618164062e-16L)
#define __thiscall __attribute__((__thiscall__))
#define __FLT128_MIN__ 3.36210314311209350626267781732175260e-4932F128
#define _LP64 1
#define __UINT8_C(c) c
#define __FLT64_MAX_EXP__ 1024
#define __INT_LEAST32_TYPE__ int
#define __SIZEOF_WCHAR_T__ 2
#define __GNUC_PATCHLEVEL__ 0
#define __FLT128_NORM_MAX__ 1.18973149535723176508575932662800702e+4932F128
#define __FLT64_NORM_MAX__ 1.79769313486231570814527423731704357e+308F64
#define __FLT128_HAS_QUIET_NAN__ 1
#define __INTMAX_MAX__ 0x7fffffffffffffffL
#define __INT_FAST8_TYPE__ signed char
#define __fastcall __attribute__((__fastcall__))
#define __FLT64X_MIN__ 3.36210314311209350626267781732175260e-4932F64x
#define __GNUC_STDC_INLINE__ 1
#define __FLT64_HAS_DENORM__ 1
#define __FLT32_EPSILON__ 1.19209289550781250000000000000000000e-7F32
#define __DBL_DECIMAL_DIG__ 17
#define __STDC_UTF_32__ 1
#define __INT_FAST8_WIDTH__ 8
#define __FXSR__ 1
#define __FLT32X_MAX__ 1.79769313486231570814527423731704357e+308F32x
#define __DBL_NORM_MAX__ double(1.79769313486231570814527423731704357e+308L)
#define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
#define __INTMAX_WIDTH__ 64
#define __cpp_runtime_arrays 198712L
#define __UINT64_TYPE__ long unsigned int
#define __UINT32_C(c) c ## U
#define __cpp_alias_templates 200704L
#define __FLT_DENORM_MIN__ 1.40129846432481707092372958328991613e-45F
#define __INT8_MAX__ 0x7f
#define __LONG_WIDTH__ 64
#define __PIC__ 1
#define __UINT_FAST32_TYPE__ long unsigned int
#define __FLT32X_NORM_MAX__ 1.79769313486231570814527423731704357e+308F32x
#define __CHAR32_TYPE__ unsigned int
#define __FLT_MAX__ 3.40282346638528859811704183484516925e+38F
#define __cpp_constexpr 201304L
#define __SSE2__ 1
#define __INT32_TYPE__ int
#define __SIZEOF_DOUBLE__ 8
#define __cpp_exceptions 199711L
#define __FLT_MIN_10_EXP__ (-37)
#define __FLT64_MIN__ 2.22507385850720138309023271733240406e-308F64
#define __INT_LEAST32_WIDTH__ 32
#define __INTMAX_TYPE__ long int
#define __DEC128_MAX_EXP__ 6145
#define __FLT32X_HAS_QUIET_NAN__ 1
#define __ATOMIC_CONSUME 1
#define __GNUC_MINOR__ 2
#define __GLIBCXX_TYPE_INT_N_0 __int128
#define __INT_FAST16_WIDTH__ 64
#define __UINTMAX_MAX__ 0xffffffffffffffffUL
#define __FLT32X_DENORM_MIN__ 4.94065645841246544176568792868221372e-324F32x
#define __DBL_MAX_10_EXP__ 308
#define __LDBL_DENORM_MIN__ 3.64519953188247460252840593361941982e-4951L
#define __INT16_C(c) c
#define __STDC__ 1
#define __FLT32X_DIG__ 15
#define __PTRDIFF_TYPE__ long int
#define __ATOMIC_SEQ_CST 5
#define __FLT32X_MIN_10_EXP__ (-307)
#define __UINTPTR_TYPE__ long unsigned int
#define __DEC64_SUBNORMAL_MIN__ 0.000000000000001E-383DD
#define __DEC128_MANT_DIG__ 34
#define __LDBL_MIN_10_EXP__ (-4931)
#define __cpp_generic_lambdas 201304L
#define __SSE_MATH__ 1
#define __SIZEOF_LONG_LONG__ 8
#define __cpp_user_defined_literals 200809L
#define __FLT128_DECIMAL_DIG__ 36
#define __GCC_ATOMIC_LLONG_LOCK_FREE 2
#define __FLT32_HAS_QUIET_NAN__ 1
#define __FLT_DECIMAL_DIG__ 9
#define __UINT_FAST16_MAX__ 0xffffffffffffffffUL
#define __LDBL_NORM_MAX__ 1.18973149535723176502126385303097021e+4932L
#define __GCC_ATOMIC_SHORT_LOCK_FREE 2
#define __UINT_FAST8_TYPE__ unsigned char
#define __cpp_init_captures 201304L
#define __ATOMIC_ACQ_REL 4
#define __ATOMIC_RELEASE 3
#define __declspec(x) __attribute__((x))

Thanks for working on the issue. The autotools scripts now work fine.

Are we missing some Windows flag to the compiler? It does not appear to be defining a Windows macro. So, platform.H thinks it is unix.

[Greg Ercolano]

On 11/24/21 11:25 AM, Mark Olesen wrote:

Mark J Olesen@DESKTOP-64I0KOO MINGW64 ~/opensource/fltk
$ make

[..]

=== making src ===
make[1]: Entering directory '/home/Mark J Olesen/opensource/fltk/src'
Compiling Fl.cxx...
In file included from Fl.cxx:22:
../FL/platform.H:51:14: fatal error: X11/Xlib.h: No such file or directory
   51 | #    include <X11/Xlib.h>
      |              ^~~~~~~~~~~~
compilation terminated.

    Having trouble replicating here, using a fresh install of msys2 + fltk cloned from git
    on Windows 8. (I see you used Win10, but I wouldn't think it'd matter).

    Sails right through the build of fltk-1.4.x freshly cloned from github.
    (I think you haven't mentioned which version of FLTK you're using, so I'm
    to assume the current master from git)

    Perhaps the devil's in the details of how you installed msys2?

    In my case:

        1) I followed steps 1 through 7 on this page: https://www.msys2.org/

        2) Not sure why, but 'git' was not part of the 'base-devel' install in step 7 above,
           so I had to install it with: pacman -S git

        3) Cloned fltk, cd'ed into the directory and ran 'make':

                git clone https://github.com/fltk/fltk.git fltk-1.4.x.git
                cd fltk-1.4.x.git
                make

    This automatically ran autogen, ran configured, and then started building FLTK.

    Built OK, 2 warnings no errors.
    (I'll report the warnings in an issue - one warning was from PNG, the other from Fl_Table)


CAVEAT
    To install a new msys2 in place of my older out of date one, I simply renamed away my old
    msys2 install using the following in a DOS window (and making sure no msys shells were open):

            move c:\msys64 c:\.deleteme-msys64

    ..then installed from scratch using the above instructions.

[Ian MacArthur]

Hmm - what compiler actually is that? There are a few things you get that I don’t seem to see, and some things look “wrong”...

What does “g++ -v” actually report in your Msys2 shell?

Cross-compiling: no
       Graphics: GDI+

OK - so at this point configure has correctly identified that it is a Windows GDI build (i.e. not X11!)

Compiling gzlib.c...
gzlib.c: In function ‘gz_open’:
gzlib.c:243:20: warning: implicit declaration of function ‘_wopen’; did you mean ‘fwopen’? [-Wimplicit-function-declaration]
  243 |         fd == -2 ? _wopen(path, oflag, 0666) :
      |                    ^~~~~~
      |                    fwopen

That looks odd - I don't recall my “fresh” build from earlier today doing that. 

This may well be the warning from PNG that Greg mentions, though I imagine.

Compiling Fl.cxx...
In file included from Fl.cxx:22:
../FL/platform.H:51:14: fatal error: X11/Xlib.h: No such file or directory
   51 | #    include <X11/Xlib.h>
      |              ^~~~~~~~~~~~
compilation terminated.

And my build definitely did not do that!

Thanks for working on the issue. The autotools scripts now work fine. 

Are we missing some Windows flag to the compiler? It does not appear to be defining a Windows macro. So, platform.H thinks it is unix.

The compiler set of defines you listed looks a bit odd to me; in particular a “Windows” compiler ought to define (at least) “_WIN32", maybe also “__WIN32” (and historically also WIN32, but that is deprecated now) but yours appears not to have defined any of those, though it does have __MSYS__ and so forth set. Which seems suspicious.

Which, in turn, was why I was asking what actual compiler you are using...

[Albrecht Schlosser]

On 11/24/21 10:10 PM Greg Ercolano wrote:

On 11/24/21 11:25 AM, Mark Olesen wrote:

Mark J Olesen@DESKTOP-64I0KOO MINGW64 ~/opensource/fltk
$ make
[..]
=== making src ===
make[1]: Entering directory '/home/Mark J Olesen/opensource/fltk/src'
Compiling Fl.cxx...
In file included from Fl.cxx:22:
../FL/platform.H:51:14: fatal error: X11/Xlib.h: No such file or directory
   51 | #    include <X11/Xlib.h>
      |              ^~~~~~~~~~~~
compilation terminated.

    Having trouble replicating here, using a fresh install of msys2 + fltk cloned from git
    on Windows 8. (I see you used Win10, but I wouldn't think it'd matter).

    Sails right through the build of fltk-1.4.x freshly cloned from github.
    (I think you haven't mentioned which version of FLTK you're using, so I'm
    to assume the current master from git)

    Perhaps the devil's in the details of how you installed msys2?

Yes I think that's the case. The "problem" with MSYS2 is that there are several "personalities" of the build tools, one for MSYS itself (you MUST NOT use that one) and one for Windows (MinGW) 32-bit and 64-bit. You can use one of the latter, I'm using the 64-bit versions.

    In my case:

        1) I followed steps 1 through 7 on this page: https://www.msys2.org/

        2) Not sure why, but 'git' was not part of the 'base-devel' install in step 7 above,
           so I had to install it with: pacman -S git

        3) Cloned fltk, cd'ed into the directory and ran 'make':

                git clone https://github.com/fltk/fltk.git fltk-1.4.x.git
                cd fltk-1.4.x.git
                make

    This automatically ran autogen, ran configured, and then started building FLTK.

I think step 7 is the key:

$ pacman -S --needed base-devel mingw-w64-x86_64-toolchain

This does obviously install the correct toolchain (mingw-w64-x86_64). Unfortunately I don't have a log of my installation available.

@Mark: you wrote:

> Are we missing some Windows flag to the compiler? It does not appear to 
> be defining a Windows macro. So, platform.H thinks it is unix.

Exactly. Your gcc output does not contain the required _WIN32 macro because this gcc "personality" is obviously for building MSYS programs. For comparison, this is from my MSYS2 installation:

$ pacman -Qs | grep gcc   # lists the installed gcc compiler
local/gcc-libs 10.2.0-1 (msys2-devel)
local/mingw-w64-x86_64-gcc 10.3.0-5 (mingw-w64-x86_64-toolchain)
local/mingw-w64-x86_64-gcc-ada 10.3.0-5 (mingw-w64-x86_64-toolchain)
local/mingw-w64-x86_64-gcc-fortran 10.3.0-5 (mingw-w64-x86_64-toolchain)
local/mingw-w64-x86_64-gcc-libgfortran 10.3.0-5 (mingw-w64-x86_64-toolchain)
local/mingw-w64-x86_64-gcc-libs 10.3.0-5 (mingw-w64-x86_64-toolchain)
local/mingw-w64-x86_64-gcc-objc 10.3.0-5 (mingw-w64-x86_64-toolchain)
local/mingw-w64-x86_64-libgccjit 10.3.0-5 (mingw-w64-x86_64-toolchain)
    GNU Compiler Collection (libgccjit) for MinGW-w64

$ which g++
/mingw64/bin/g++

$ g++ -dM -E -x c++ - < /dev/null | grep WIN32
#define __WIN32__ 1
#define _WIN32 1
#define WIN32 1
#define __WIN32 1

This shows that the required _WIN32 macro is defined here.

Mark, please try to follow the instructions Greg showed above and I believe you should get the correct toolchain installed and your Msys2/MinGW installation should be able to build FLTK for a standard Windows environment.

[Greg Ercolano]

On 11/24/21 1:29 PM, Ian MacArthur wrote:

Hmm - what compiler actually is that? There are a few things you get that I don’t seem to see, and some things look “wrong”...

What does “g++ -v” actually report in your Msys2 shell?

    I'll await the OP's response to that question as well.

    What it "should be", assuming msys2 was installed recently (today),
    I get version 11.2.0 (Rev2):

Using built-in specs.
COLLECT_GCC=C:\msys64\mingw64\bin\g++.exe
COLLECT_LTO_WRAPPER=C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/lto-wrapper.exe
Target: x86_64-w64-mingw32
Configured with: ../gcc-11.2.0/configure --prefix=/mingw64 --with-local-prefix=/mingw64/local --build=x86_64-w64-mingw32 --host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32 --with-native-system-header-dir=/mingw64/x86_64-w64-mingw32/include --libexecdir=/mingw64/lib --enable-bootstrap --enable-checking=release --with-arch=x86-64 --with-tune=generic --enable-languages=c,lto,c++,fortran,ada,objc,obj-c++,jit --enable-shared --enable-static --enable-libatomic --enable-threads=posix --enable-graphite --enable-fully-dynamic-string --enable-libstdcxx-filesystem-ts --enable-libstdcxx-time --disable-libstdcxx-pch --disable-libstdcxx-debug --enable-lto --enable-libgomp --disable-multilib --disable-rpath --disable-win32-registry --disable-nls --disable-werror --disable-symvers --with-libiconv --with-system-zlib --with-gmp=/mingw64 --with-mpfr=/mingw64 --with-mpc=/mingw64 --with-isl=/mingw64 --with-pkgversion='Rev2, Built by MSYS2 project' --with-bugurl=https://github.com/msys2/MINGW-packages/issues --with-gnu-as --with-gnu-ld --with-boot-ldflags='-pipe -Wl,--dynamicbase,--high-entropy-va,--nxcompat,--default-image-base-high -Wl,--disable-dynamicbase -static-libstdc++ -static-libgcc' 'LDFLAGS_FOR_TARGET=-pipe -Wl,--dynamicbase,--high-entropy-va,--nxcompat,--default-image-base-high' --enable-linker-plugin-flags='LDFLAGS=-static-libstdc++\ -static-libgcc\ -pipe\ -Wl,--dynamicbase,--high-entropy-va,--nxcompat,--default-image-base-high\ -Wl,--stack,12582912'
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 11.2.0 (Rev2, Built by MSYS2 project)

Compiling gzlib.c...
gzlib.c: In function ‘gz_open’:
gzlib.c:243:20: warning: implicit declaration of function ‘_wopen’; did you mean ‘fwopen’? [-Wimplicit-function-declaration]
  243 |         fd == -2 ? _wopen(path, oflag, 0666) :
      |                    ^~~~~~
      |                    fwopen

That looks odd - I don't recall my “fresh” build from earlier today doing that. 

This may well be the warning from PNG that Greg mentions, though I imagine.

    Actually, that's not one of the warnings I got.

    I opened issue #296 regarding the warnings I got this morning:
    https://github.com/fltk/fltk/issues/296

[Mark Olesen]

Interesting. I deleted msys and did another install following the steps outlined by Greg. The library was build and some exes. Now getting stuck on

Linking help_dialog.exe...
Compiling icon.cxx...
icon.cxx: In function 'void choice_cb(Fl_Widget*, void*)':
icon.cxx:27:38: warning: 'buffer' may be used uninitialized [-Wmaybe-uninitialized]
   27 |   Fl_RGB_Image icon(buffer, 32, 32, 3);
      |                                      ^
In file included from ../FL/Fl_Bitmap.H:22,
                 from ../FL/Fl_Window.H:25,
                 from ../FL/Fl_Double_Window.H:23,
                 from icon.cxx:18:
../FL/Fl_Image.H:333:3: note: by argument 2 of type 'const uchar*' {aka 'const unsigned char*'} to 'Fl_RGB_Image::Fl_RGB_Image(const uchar*, int, int, int, int)' declared here
  333 |   Fl_RGB_Image(const uchar *bits, int W, int H, int D=3, int LD=0);
      |   ^~~~~~~~~~~~
icon.cxx:26:9: note: 'buffer' declared here
   26 |   uchar buffer[32*32*3];
      |         ^~~~~~
Linking icon.exe...
Compiling iconize.cxx...
Linking iconize.exe...
Compiling image.cxx...
Linking image.exe...
Generating inactive.cxx and header from inactive.fl...

Task manager shows fluid process running. created dump but file was too large to upload.

Anyway, my initial problem is solved.

Thank you.