bfd/acinclude.m4

   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 "${host}" in
   5 changequote(,)dnl
   6 *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-cygwin* | *-*-windows)
   7 changequote([,])dnl
   8   AC_DEFINE(USE_BINARY_FOPEN, 1, [Use b modifier when opening binary files?]) ;;
   9 esac])dnl
  10
  11 dnl Get a default for CC_FOR_BUILD to put into Makefile.
  12 AC_DEFUN(BFD_CC_FOR_BUILD,
  13 [# Put a plausible default for CC_FOR_BUILD in Makefile.
  14 if test -z "$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
  20 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 */
  30 }
  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}
  38 fi
  39 AC_SUBST(EXEEXT_FOR_BUILD)])dnl
  40
  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.])
  66 fi
  67 ])dnl
  68
  69 dnl Check for existence of a type $1 in sys/procfs.h
  70
  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)
  84 ])
  85
  86
  87 dnl Check for existence of member $2 in type $1 in sys/procfs.h
  88
  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)
 102 ])
 103
 104