RApache with httpd 2.4 on Centos htpd24 scl

[Justin Dearing]

I have a machine with centos 6.6 final and the httpd24 software collection library. Basically a yum repo that installs most files to  /opt/rh/httpd24/root/usr/(bin|sbin|lib64|etc) and I can start it with `service httpd24-httpd start`

First of all,  --with-apache2-apxs was completely broken. I found a battle tested macro online. My fix is here https://github.com/zippy1981/rapache/tree/httpd24-scl

I want to run mod_R on this version of apache. I do the following:

scl enable httpd24 bash # prepends /opt/rh/httpd24/root/usr/bin:/opt/rh/httpd24/root/usr/sbin: to $PATH

./configure 

This gives me the following amongst other lines:

checking for --with-apxs... no

checking for apxs... /opt/rh/httpd24/root/usr/bin/apxs

checking for R... /usr/bin/R

checking for apreq2-config... /usr/bin/apreq2-config

Note the scl does not have its own apreq-config

make happens like this:

[jdearing@XXXXXXXX rapache]$ make

Configuring libapreq2

touch .apreq-config

Compiling mod_R

/opt/rh/httpd24/root/usr/bin/apxs -I/usr/include/R -I/usr/include/apreq2 -I/usr/include/apr-1   -c mod_R.c -Wl,-rpath,/usr/lib64/R/lib -Wl,--export-dynamic -fopenmp  -L/usr/lib64/R/lib -lR -lrt -ldl -lm -licuuc -licui18n -L/usr/lib64 -lapreq2

/opt/rh/httpd24/root/usr/lib64/apr-1/build/libtool --silent --mode=compile gcc -std=gnu99 -prefer-pic -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic  -DLINUX -D_REENTRANT -D_GNU_SOURCE -pthread -I/opt/rh/httpd24/root/usr/include/httpd  -I/opt/rh/httpd24/root/usr/include/apr-1   -I/opt/rh/httpd24/root/usr/include/apr-1 -I/opt/rh/httpd24/root/usr/include -I/usr/include/R -I/usr/include/apreq2 -I/usr/include/apr-1  -c -o mod_R.lo mod_R.c && touch mod_R.slo

mod_R.c: In function ‘ReadRequestBody’:

mod_R.c:792: warning: pointer targets in passing argument 2 of ‘apr_brigade_flatten’ differ in signedness

/opt/rh/httpd24/root/usr/include/apr-1/apr_buckets.h:749: note: expected ‘char *’ but argument is of type ‘unsigned char *’

mod_R.c:764: warning: unused variable ‘data’

mod_R.c: In function ‘RApache_setCookie’:

mod_R.c:1802: warning: unused variable ‘cookies’

mod_R.c: In function ‘RApache_getServer’:

mod_R.c:2125: warning: implicit declaration of function ‘ap_get_server_port’

mod_R.c: In function ‘dirname’:

mod_R.c:1100: warning: ‘j’ may be used uninitialized in this function

mod_R.c: In function ‘RApache_receiveBin’:

mod_R.c:2406: warning: ‘buf’ may be used uninitialized in this function

mod_R.c: In function ‘RApache_setCookie’:

mod_R.c:1824: warning: ‘tmpExpires’ may be used uninitialized in this function

/opt/rh/httpd24/root/usr/lib64/apr-1/build/libtool --silent --mode=link gcc -std=gnu99 -Wl,-z,relro,-z,now   -o mod_R.la  -rpath /opt/rh/httpd24/root/usr/lib64/httpd/modules -module -avoid-version    mod_R.lo -Wl,-rpath,/usr/lib64/R/lib -Wl,--export-dynamic -fopenmp -L/usr/lib64/R/lib -lR -lrt -ldl -lm -licuuc -licui18n -L/usr/lib64 -lapreq2

R_DEFAULT_PACKAGES=NULL /usr/bin/R --vanilla --no-readline --slave -f tools/config_http.R --args /opt/rh/httpd24/root/usr/bin/apxs /opt/rh/httpd24/root/usr/sbin/httpd

[jdearing@CA1LRWEBDEV03 rapache]$

make install is where things get interesting:

Compiling mod_R

/opt/rh/httpd24/root/usr/bin/apxs -I/usr/include/R -I/usr/include/apreq2 -I/usr/include/apr-1   -c mod_R.c -Wl,-rpath,/usr/lib64/R/lib -Wl,--export-dynamic -fopenmp  -L/usr/lib64/R/lib -lR -lrt -ldl -lm -licuuc -licui18n -L/usr/lib64 -lapreq2

/usr/lib64/apr-1/build/libtool --silent --mode=compile gcc -prefer-pic -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -Wformat-security -fno-strict-aliasing  -DLINUX=2 -D_REENTRANT -D_GNU_SOURCE -pthread -I/usr/include/httpd  -I/usr/include/apr-1   -I/usr/include/apr-1  -I/usr/include/R -I/usr/include/apreq2 -I/usr/include/apr-1  -c -o mod_R.lo mod_R.c && touch mod_R.slo

mod_R.c: In function ‘ReadRequestBody’:

mod_R.c:792: warning: pointer targets in passing argument 2 of ‘apr_brigade_flatten’ differ in signedness

/usr/include/apr-1/apr_buckets.h:747: note: expected ‘char *’ but argument is of type ‘unsigned char *’

mod_R.c:764: warning: unused variable ‘data’

mod_R.c: In function ‘RApache_setCookie’:

mod_R.c:1802: warning: unused variable ‘cookies’

mod_R.c: In function ‘RApache_getServer’:

mod_R.c:2125: warning: implicit declaration of function ‘ap_get_server_port’

mod_R.c: In function ‘dirname’:

mod_R.c:1100: warning: ‘j’ may be used uninitialized in this function

mod_R.c: In function ‘RApache_receiveBin’:

mod_R.c:2406: warning: ‘buf’ may be used uninitialized in this function

mod_R.c: In function ‘RApache_setCookie’:

mod_R.c:1824: warning: ‘tmpExpires’ may be used uninitialized in this function

/usr/lib64/apr-1/build/libtool --silent --mode=link gcc   -Wl,-z,relro -o mod_R.la  -rpath /usr/lib64/httpd/modules -module -avoid-version    mod_R.lo -Wl,-rpath,/usr/lib64/R/lib -Wl,--export-dynamic -fopenmp -L/usr/lib64/R/lib -lR -lrt -ldl -lm -licuuc -licui18n -L/usr/lib64 -lapreq2

/opt/rh/httpd24/root/usr/bin/apxs -i -n R mod_R.la

/usr/lib64/httpd/build/instdso.sh SH_LIBTOOL='/usr/lib64/apr-1/build/libtool' mod_R.la /usr/lib64/httpd/modules

/usr/lib64/apr-1/build/libtool --mode=install cp mod_R.la /usr/lib64/httpd/modules/

libtool: install: cp .libs/mod_R.so /usr/lib64/httpd/modules/mod_R.so

libtool: install: cp .libs/mod_R.lai /usr/lib64/httpd/modules/mod_R.la

libtool: install: cp .libs/mod_R.a /usr/lib64/httpd/modules/mod_R.a

libtool: install: chmod 644 /usr/lib64/httpd/modules/mod_R.a

libtool: install: ranlib /usr/lib64/httpd/modules/mod_R.a

libtool: finish: PATH="/sbin:/bin:/usr/sbin:/usr/bin:/sbin" ldconfig -n /usr/lib64/httpd/modules

----------------------------------------------------------------------

Libraries have been installed in:

   /usr/lib64/httpd/modules

If you ever happen to want to link against installed libraries

in a given directory, LIBDIR, you must either use libtool, and

specify the full pathname of the library, or use the `-LLIBDIR'

flag during linking and do at least one of the following:

   - add LIBDIR to the `LD_LIBRARY_PATH' environment variable

     during execution

   - add LIBDIR to the `LD_RUN_PATH' environment variable

     during linking

   - use the `-Wl,-rpath -Wl,LIBDIR' linker flag

   - have your system administrator add LIBDIR to `/etc/ld.so.conf'

See any operating system documentation about shared libraries for

more information, such as the ld(1) and ld.so(8) manual pages.

----------------------------------------------------------------------

chmod 755 /usr/lib64/httpd/modules/mod_R.so

I need the above highlighted libtool to be changed to  /opt/rh/httpd24/root/usr/lib64/apr-1/build/libtool. How do I do that?

Thanks,

Justin

[Justin Dearing]

I solved it. It was stupid.

When I do "sudo make install" sudo removes the items "scl enable httpd bash" prepends to my path. So the answer is "sudo scl enable httpd make install".