Nagios Support Forum

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Andreas Ericsson wrote:
> What's the reason for linking in libmath and libnsl?
>
> Insofar as I know no functions in either nagios or any of the cgi's use
> any advanced math and should work well without it.
>

Except for statuswrl.c, which I don't build (meh the stupid). It seems
curious in the base dir though.

> libnsl is another library out of place. Perhaps it's needed by Sun and
> friends. On Linux (Fedora 3, Openwall current, Debian sarge) Nagios
> builds nicely without them, although I know Sun (and some others) have
> huge problems understanding any C-code at all without it. Perhaps -lnsl
> should be linked explicitly on those and dropped for other platforms?
>

This remains a mystery.

To remove the -lm stuff in base, you can apply the attached patch.

--
Andreas Ericsson [email protected]
OP5 AB www.op5.se
Lead Developer

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diff -urN ../nagios.orig/base/Makefile.in ./base/Makefile.in
--- ../nagios.orig/base/Makefile.in 2005-05-22 20:26:47.000000000 +0200
+++ ./base/Makefile.in 2005-05-22 20:27:33.000000000 +0200
@@ -42,7 +42,6 @@
CGIURL=@cgiurl@
HTMURL=@htmurl@

-MATHLIBS=-lm
PERLLIBS=@PERLLIBS@
PERLXSI_O=@PERLXSI_O@
SOCKETLIBS=@SOCKETLIBS@
@@ -151,10 +150,10 @@
$(CC) $(CFLAGS) -c -o $@ $(XRDC)

nagios: $(OBJS) $(OBJDEPS) $(SRC_INCLUDE)/nagios.h $(SRC_INCLUDE)/locations.h
- $(CC) -o $@ $(OBJS) $(BROKER_LDFLAGS) $(LDFLAGS) $(PERLLIBS) $(MATHLIBS) $(SOCKETLIBS) $(THREADLIBS) $(BROKERLIBS) $(LIBS)
+ $(CC) -o $@ $(OBJS) $(BROKER_LDFLAGS) $(LDFLAGS) $(PERLLIBS) $(SOCKETLIBS) $(THREADLIBS) $(BROKERLIBS) $(LIBS)

nagiostats: nagiostats.c $(SRC_INCLUDE)/locations.h
- $(CC) $(CFLAGS) -o $@ nagiostats.c $(LDFLAGS) $(MATHLIBS) $(LIBS)
+ $(CC) $(CFLAGS) -o $@ nagiostats.c $(LDFLAGS) $(LIBS)

$(OBJS): $(SRC_INCLUDE)/locations.h

diff -urN ../nagios.orig/nagios-base-nomath.diff ./nagios-base-nomath.diff
--- ../nagios.orig/nagios-base-nomath.diff 1970-01-01 01:00:00.000000000 +0100
+++ ./nagios-base-nomath.diff 2005-05-22 21:05:11.000000000 +0200
@@ -0,0 +1,24 @@
+diff -urN ../nagios.orig/base/Makefile.in ./base/Makefile.in
+--- ../nagios.orig/base/Makefile.in 2005-05-22 20:26:47.000000000 +0200
++++ ./base/Makefile.in 2005-05-22 20:27:33.000000000 +0200
+@@ -42,7 +42,6 @@
+ CGIURL=@cgiurl@
+ HTMURL=@htmurl@
+
+-MATHLIBS=-lm
+ PERLLIBS=@PERLLIBS@
+ PERLXSI_O=@PERLXSI_O@
+ SOCKETLIBS=@SOCKETLIBS@
+@@ -151,10 +150,10 @@
+ $(CC) $(CFLAGS) -c -o $@ $(XRDC)
+
+ nagios: $(OBJS) $(OBJDEPS) $(SRC_INCLUDE)/nagios.h $(SRC_INCLUDE)/locations.h
+- $(CC) -o $@ $(OBJS) $(BROKER_LDFLAGS) $(LDFLAGS) $(PERLLIBS) $(MATHLIBS) $(SOCKETLIBS) $(THREADLIBS) $(BROKERLIBS) $(LIBS)
++ $(CC) -o $@ $(OBJS) $(BROKER_LDFLAGS) $(LDFLAGS) $(PERLLIBS) $(SOCKETLIBS) $(THREADLIBS) $(BROKERLIBS) $(LIBS)
+
+ nagiostats: nagiostats.c $(SRC_INCLUDE)/locations.h
+- $(CC) $(CFLAGS) -o $@ nagiostats.c $(LDFLAGS) $(MATHLIBS) $(LIBS)
++ $(CC) $(CFLAGS) -o $@ nagiostats.c $(LDFLAGS) $(LIBS)
+
+ $(OBJS): $(SRC_INCLUDE)/locations.h
+

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