* Makefile.am: Rebuild dependencies.
[binutils.git] / bfd / acinclude.m4
blobdbe1c30fc81a888937642e2ac8e8cfe392591b1a
1 dnl See whether we need to use fopen-bin.h rather than fopen-same.h.
2 AC_DEFUN(BFD_BINARY_FOPEN,
3 [AC_REQUIRE([AC_CANONICAL_SYSTEM])
4 case "${host}" in
5 changequote(,)dnl
6 *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-cygwin* | *-*-windows)
7 changequote([,])dnl
8   AC_DEFINE(USE_BINARY_FOPEN, 1, [Use b modifier when opening binary files?]) ;;
9 esac])dnl
11 dnl Get a default for CC_FOR_BUILD to put into Makefile.
12 AC_DEFUN(BFD_CC_FOR_BUILD,
13 [# Put a plausible default for CC_FOR_BUILD in Makefile.
14 if test -z "$CC_FOR_BUILD"; then
15   if test "x$cross_compiling" = "xno"; then
16     CC_FOR_BUILD='$(CC)'
17   else
18     CC_FOR_BUILD=gcc
19   fi
21 AC_SUBST(CC_FOR_BUILD)
22 # Also set EXEEXT_FOR_BUILD.
23 if test "x$cross_compiling" = "xno"; then
24   EXEEXT_FOR_BUILD='$(EXEEXT)'
25 else
26   AC_CACHE_CHECK([for build system executable suffix], bfd_cv_build_exeext,
27     [cat > ac_c_test.c << 'EOF'
28 int main() {
29 /* Nothing needed here */
31 EOF
32     ${CC_FOR_BUILD} -o ac_c_test am_c_test.c 1>&5 2>&5
33     bfd_cv_build_exeext=`echo ac_c_test.* | grep -v ac_c_test.c | sed -e s/ac_c_test//`
34     rm -f ac_c_test*
35     test x"${bfd_cv_build_exeext}" = x && bfd_cv_build_exeext=no])
36   EXEEXT_FOR_BUILD=""
37   test x"${bfd_cv_build_exeext}" != xno && EXEEXT_FOR_BUILD=${bfd_cv_build_exeext}
39 AC_SUBST(EXEEXT_FOR_BUILD)])dnl
41 dnl See whether we need a declaration for a function.
42 AC_DEFUN(BFD_NEED_DECLARATION,
43 [AC_MSG_CHECKING([whether $1 must be declared])
44 AC_CACHE_VAL(bfd_cv_decl_needed_$1,
45 [AC_TRY_COMPILE([
46 #include <stdio.h>
47 #ifdef HAVE_STRING_H
48 #include <string.h>
49 #else
50 #ifdef HAVE_STRINGS_H
51 #include <strings.h>
52 #endif
53 #endif
54 #ifdef HAVE_STDLIB_H
55 #include <stdlib.h>
56 #endif
57 #ifdef HAVE_UNISTD_H
58 #include <unistd.h>
59 #endif],
60 [char *(*pfn) = (char *(*)) $1],
61 bfd_cv_decl_needed_$1=no, bfd_cv_decl_needed_$1=yes)])
62 AC_MSG_RESULT($bfd_cv_decl_needed_$1)
63 if test $bfd_cv_decl_needed_$1 = yes; then
64   AC_DEFINE([NEED_DECLARATION_]translit($1, [a-z], [A-Z]), 1,
65             [Define if $1 is not declared in system header files.])
67 ])dnl
69 dnl Check for existence of a type $1 in sys/procfs.h
71 AC_DEFUN(BFD_HAVE_SYS_PROCFS_TYPE,
72 [AC_MSG_CHECKING([for $1 in sys/procfs.h])
73  AC_CACHE_VAL(bfd_cv_have_sys_procfs_type_$1,
74    [AC_TRY_COMPILE([#include <sys/procfs.h>],
75       [$1 avar],
76       bfd_cv_have_sys_procfs_type_$1=yes,
77       bfd_cv_have_sys_procfs_type_$1=no
78    )])
79  if test $bfd_cv_have_sys_procfs_type_$1 = yes; then
80    AC_DEFINE([HAVE_]translit($1, [a-z], [A-Z]), 1,
81              [Define if <sys/procfs.h> has $1.])
82  fi
83  AC_MSG_RESULT($bfd_cv_have_sys_procfs_type_$1)
87 dnl Check for existence of member $2 in type $1 in sys/procfs.h
89 AC_DEFUN(BFD_HAVE_SYS_PROCFS_TYPE_MEMBER,
90 [AC_MSG_CHECKING([for $1.$2 in sys/procfs.h])
91  AC_CACHE_VAL(bfd_cv_have_sys_procfs_type_member_$1_$2,
92    [AC_TRY_COMPILE([#include <sys/procfs.h>],
93       [$1 avar; void* aref = (void*) &avar.$2],
94       bfd_cv_have_sys_procfs_type_member_$1_$2=yes,
95       bfd_cv_have_sys_procfs_type_member_$1_$2=no
96    )])
97  if test $bfd_cv_have_sys_procfs_type_member_$1_$2 = yes; then
98    AC_DEFINE([HAVE_]translit($1, [a-z], [A-Z])[_]translit($2, [a-z], [A-Z]), 1,
99              [Define if <sys/procfs.h> has $1.$2.])
100  fi
101  AC_MSG_RESULT($bfd_cv_have_sys_procfs_type_member_$1_$2)