src/Makefile.am: Unconditionally link collectd with libm.

Under FreeBSD, running src/utils_format_json.c fails because isfinite()
cannot be resolved. The GNU manpages for isnan() and isfinite() also
advise users to link with libm and AIX has had the library being linked
in for a while. Since it's such a basic library it seems easier to just
link with it unconditionally.

Fixes Github issue #122.

diff --git a/src/Makefile.am b/src/Makefile.am
index fd85107..29aac6a 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -46,7 +46,7 @@ collectd_SOURCES = collectd.c collectd.h \
 collectd_CPPFLAGS =  $(AM_CPPFLAGS) $(LTDLINCL)
 collectd_CFLAGS = $(AM_CFLAGS)
 collectd_LDFLAGS = -export-dynamic
-collectd_LDADD =
+collectd_LDADD = -lm
 collectd_DEPENDENCIES =
 
 # Link to these libraries..
@@ -73,7 +73,6 @@ collectd_LDADD += -ldevinfo
 endif
 if BUILD_AIX
 collectd_LDFLAGS += -Wl,-bexpall,-brtllib
-collectd_LDADD += -lm
 endif
 
 # The daemon needs to call sg_init, so we need to link it against libstatgrab,