Undefined references

[Derek Olson]

During the linking stage, I get the following errors (below) - I'm using the static library. I ran nm on libflame.a, and it confirms that these symbols are exported. I've copied the relevant lines from my makefile below. I suspect this is user error and I'm not linking properly or something. I am using gcc 7.2.0. The admins at my institution's HPC have also taken a crack at this, and have run into the same issues when trying to build libflame's example codes.

Thanks,
Derek

linker errors:

$HOME/src/bem2d/bem2dImpedanceBroadbandApproxFLAME.c:1714: undefined reference to `FLA_Init'
$HOME/bem2d/bem2dImpedanceBroadbandApproxFLAME.c:1733: undefined reference to `FLA_Obj_create_without_buffer'
$HOME/src/bem2d/bem2dImpedanceBroadbandApproxFLAME.c:1736: undefined reference to `FLA_Obj_attach_buffer'
$HOME/src/bem2d/bem2dImpedanceBroadbandApproxFLAME.c:1750: undefined reference to `FLA_LU_piv'
$HOME/src/bem2d/bem2dImpedanceBroadbandApproxFLAME.c:1756: undefined reference to `FLA_LU_piv_solve’

lines from Makefile

CC=gcc
CCFLAGS= -v -Wall \
-I /usr/include \
-I $HOME/src/hdf5/include \


LDFLAGSAMD = -L /usr/lib64 \
-L $HOME/src/hdf5/lib/ \
-Wl,-Bdynamic -lhdf5 \
-Wl,-Bdynamic -lhdf5_hl \
-Wl,-Bdynamic -lm \
-Wl,-Bstatic -lflame


cibbaf:
$(CC) $(CCFLAGS) -g -Wno-unused-function $(LDFLAGSAMD) bem2dImpedanceBroadbandApproxFLAME.c -o bem2d_i_bbaf.bin
chmod +x bem2d_i_bbaf.bin

[Field G. Van Zee]

Derek,

Sorry about your linking issues. I don't normally recommend compiling
and linking as part of the same command, though it usually works for
simple programs. Moving your linker flags after your .c file on the
compile/link command *may* fix things. If not, try replacing your entire
cibbaf rule with two rules--one for compiling and one for linking:

cibbaf.o: bem2dImpedanceBroadbandApproxFLAME.c
$(CC) $(CCFLAGS) -g -Wno-unused-function \
-c bem2dImpedanceBroadbandApproxFLAME.c \
-o bem2dImpedanceBroadbandApproxFLAME.o

cibbaf: cibbaf.o
$(CC) bem2dImpedanceBroadbandApproxFLAME.o \
$(LDFLAGSAMD) \
-o bem2d_i_bbaf.bin

Remember to use tabs for the first lines of each rule after the initial
line that specifies the target and prerequisites. (Tabs have special
meaning in make syntax.)

Field

[Derek Olson]

Field,

Thanks for the help. I split the rule into two as you suggested and that did the trick.

Derek