Fix linking issues when HAVE_FEENABLEEXCEPT is set.

All objects using test/util.c fail to link:
|   CCLD   region-test
| /usr/bin/ld: utils.o: in function enable_fp_exceptions:utils.c(.text+0x939): error: undefined reference to 'feenableexcept'

There's indeed no explicit dependency on -lm, and if HAVE_FEENABLEEXCEPT
happens to be set, test/util.c uses feenableexcept(), which is nowhere
to be found while linking.

Fix this by adding -lm to TEST_LDADD, although two alternatives could be
thought of:
 - Only specifying -lm for objects using util.c.
 - Introducing a conditional to add -lm only when configure detects
   have_feenableexcept=yes.

Signed-off-by: Cyril Brulebois <kibi@debian.org>

diff --git a/test/Makefile.am b/test/Makefile.am
index 52e4183..bc92e65 100644 (file)
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -1,7 +1,7 @@
 AM_CFLAGS = @OPENMP_CFLAGS@
 AM_LDFLAGS = @OPENMP_CFLAGS@
 
-TEST_LDADD = $(top_builddir)/pixman/libpixman-1.la
+TEST_LDADD = $(top_builddir)/pixman/libpixman-1.la -lm
 INCLUDES = -I$(top_srcdir)/pixman -I$(top_builddir)/pixman
 
 TESTPROGRAMS =                 \