Hi, I am having trouble with AC_CHECK_FUNC. It turns out that the order of parameters on the gcc commandline configure uses to compile code to check for the existence of the function is not proper in my case. I could not find any mention of such a problem in newsgroups, so I am assuming I am doing something stupid. The root problem is that in the compile command the source file name (conftest.c) is placed behind the $LDFLAGS. Latter library contains the function I am checking for. If I reorder the commandline such that -lgd comes after conftest.c (the way it ought to be according to the gcc documentation) then the code compiles fine. I observe this problem with both autoconf-2.1.3 and 2.5.9 and am running on cygwin using gcc3.4.4 I appreciate any tips on how to resolve this. Thanks, Horst Here is the appropriate excerpt from configure.in ============= LDFLAGS="$LDFLAGS -lgd" AC_CHECK_FUNC(gdImagePng, DO_GD=' ';AC_DEFINE(DO_GD)) ============= Here is the appropriate excerpt from config.log: ============= configure:2242: checking for gdImagePng configure:2270: gcc -o conftest -g -O2 -I/usr/X11R6/include -I/usr/local/include -L/usr/X11R6/l ib -L/usr/local/lib -lm -lX11 -lgd conftest.c 1>&5 /D/tmp/ccQFB8tX.o: In function `main': /cygdrive/d/horst/C/g2/g2/configure:2264: undefined reference to `_gdImagePng' collect2: ld returned 1 exit status ============= _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
