f55db51d4b
* gnome-support.m4: Check for functions that `error.c' looks for. svn path=/trunk/; revision=291
105 lines
3.8 KiB
Plaintext
105 lines
3.8 KiB
Plaintext
dnl GNOME_SUPPORT_CHECKS
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dnl Check for various support functions needed by the standard
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dnl Gnome libraries. Sets LIBOBJS, might define some macros,
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dnl and will set the need_gnome_support shell variable to "yes"
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dnl or "no". Also sets up the Automake BUILD_GNOME_SUPPORT
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dnl conditional. This should only be used when building the Gnome
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dnl libs; Gnome clients should not need this macro.
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AC_DEFUN([GNOME_SUPPORT_CHECKS],[
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# we need an `awk' to build `gnomesupport.h'
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AC_REQUIRE([AC_PROG_AWK])
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need_gnome_support=no
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save_LIBOBJS="$LIBOBJS"
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LIBOBJS=
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AC_CHECK_FUNCS(getopt_long,,LIBOBJS="$LIBOBJS getopt.o getopt1.o")
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# We check for argp_domain because we use it, and it appears only in
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# very recent versions of the argp library.
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AC_CACHE_CHECK([for working argp code], gnome_cv_argp, [
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AC_TRY_COMPILE([#include <argp.h>], [
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struct argp foo;
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extern char *foo2;
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foo.argp_domain = foo2;],
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gnome_cv_argp=yes,
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gnome_cv_argp=no)
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# It is possible to have the argp headers installed but not have
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# the code in the C library. At least, there have been reports of
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# this happening. So we check for this case explicitly.
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if test "$gnome_cv_argp" = yes; then
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AC_CHECK_FUNC(argp_parse,,gnome_cv_argp=no)
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fi])
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if test "$gnome_cv_argp" = no; then
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LIBOBJS="$LIBOBJS argp-ba.o argp-eexst.o argp-fmtstream.o argp-fs-xinl.o argp-help.o argp-parse.o argp-pv.o argp-pvh.o argp-xinl.o"
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fi
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# This header enables some optimizations inside argp.
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AC_CHECK_HEADERS(linewrap.h)
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# for `scandir'
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AC_HEADER_DIRENT
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# AC_CACHE_CHECK([for program_invocation_short_name], gnome_cv_short_name, [
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# AC_TRY_LINK([#include <errno.h>],[
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# char *foo = program_invocation_short_name],
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# gnome_cv_short_name=yes, gnome_cv_short_name=no)])
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# if test "$gnome_cv_short_name" = yes; then
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# AC_DEFINE(HAVE_PROGRAM_INVOCATION_SHORT_NAME)
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# fi
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# AC_CACHE_CHECK([for program_invocation_name], gnome_cv_invocation_name, [
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# AC_TRY_LINK([#include <errno.h>],[
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# char *foo = program_invocation_name],
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# gnome_cv_invocation_name=yes, gnome_cv_invocation_name=no)])
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# if test "$gnome_cv_invocation_name" = yes; then
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# AC_DEFINE(HAVE_PROGRAM_INVOCATION_NAME)
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# fi
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# copied from `configure.in' of `libiberty'
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vars="program_invocation_short_name program_invocation_name sys_errlist"
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for v in $vars; do
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AC_MSG_CHECKING([for $v])
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AC_CACHE_VAL(gnome_cv_var_$v,
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[AC_TRY_LINK([int *p;], [extern int $v; p = &$v;],
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[eval "gnome_cv_var_$v=yes"],
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[eval "gnome_cv_var_$v=no"])])
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if eval "test \"`echo '$gnome_cv_var_'$v`\" = yes"; then
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AC_MSG_RESULT(yes)
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n=HAVE_`echo $v | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
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AC_DEFINE_UNQUOTED($n)
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else
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AC_MSG_RESULT(no)
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fi
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done
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AC_CHECK_FUNCS(vsnprintf,,[
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AC_CHECK_FUNCS(__vsnprintf,
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LIBOBJS="$LIBOBJS easy-vsnprintf.o",
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LIBOBJS="$LIBOBJS vsnprintf.o")])
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AC_REPLACE_FUNCS(memmove mkstemp scandir strcasecmp strerror strndup strnlen)
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AC_REPLACE_FUNCS(strtok_r strtod strtol strtoul vasprintf)
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# to include `error.c' error.c has some HAVE_* checks
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AC_CHECK_FUNCS(vprintf doprnt sterror_r)
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AM_FUNC_ERROR_AT_LINE
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# see if we need to declare some functions. Solaris is notorious for
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# putting functions into the `libc' but not listing them in the headers
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AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h)
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GCC_NEED_DECLARATIONS(gethostname)
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if test "$LIBOBJS$gcc_need_declarations" != ""; then
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need_gnome_support=yes
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fi
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# Turn our LIBOBJS into libtool objects. This is gross, but it
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# requires changes to autoconf before it goes away.
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LTLIBOBJS=`echo "$LIBOBJS" | sed 's/\.o/.lo/g'`
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AC_SUBST(need_gnome_support)
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AC_SUBST(LTLIBOBJS)
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LIBOBJS="$save_LIBOBJS"
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AM_CONDITIONAL(BUILD_GNOME_SUPPORT, test "$need_gnome_support" = yes)
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])
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