Wrong detection on cairo

[fundawang]

in configure.in:

ac_save_ldflags="$LDFLAGS"
LDFLAGS="$LDFLAGS $CAIROLIB"
AC_CHECK_FUNC(cairo_create,,[
AC_MSG_ERROR([*** Unable to locate cairo_create() function.])
])
LDFLAGS=${ac_save_ldflags}

but CAIROLIB is a library, not a linker flag. as Mandriva will use LDFLAGS="-Wl,--as-needed" by default, such a wrong link order will make it impossible to test the program:

gcc -o conftest -Wl,--as-needed -lcairo conftest.c
}}

It will produces: undefined reference to `cairo_create', because -lcairo is considered as objects, rather than libs.

You should change ldflags to LIBS.

[fundawang]

patch here

[glynn]

Replying to fundawang:

It will produces: undefined reference to `cairo_create', because -lcairo is considered as objects, rather than libs. You should change ldflags to LIBS.

FWIW, 7.0 uses LIBS via LOC_CHECK_FUNC.

[neteler]

The 7 code is here:  http://trac.osgeo.org/grass/browser/grass/trunk/configure.in#L1409

[fundawang]

I think I'm talking about 6.4x

[fundawang]

still valid for 6.4 rc4

[fundawang]

ping??

[neteler]

Fixed in 6.5.svn (r36869) and 6.4.0svn (r36870) for the 6.4.0final.

Thanks for the patch.

Markus