2011-05-26 Pedro Alves <pedro@codesourcery.com>
[deliverable/binutils-gdb.git] / gdb / acinclude.m4
index ab58112112c1fca4f37eedddf702c1b7385516fb..1942ef484fffffdcbd1cd101a99fccad52075d3c 100644 (file)
@@ -32,6 +32,8 @@ sinclude([../config/lcmessage.m4])
 dnl For AM_LANGINFO_CODESET.
 sinclude([../config/codeset.m4])
 
+sinclude([../config/zlib.m4])
+
 #
 # Sometimes the native compiler is a bogus stub for gcc or /usr/ucb/cc. This
 # makes configure think it's cross compiling. If --target wasn't used, then
@@ -167,7 +169,8 @@ case "x$am_cv_prog_cc_stdc" in
 esac
 ])
 
-dnl From Bruno Haible.
+dnl Originally from Bruno Haible, but with some modifications
+dnl for the GDB project.
 
 AC_DEFUN([AM_ICONV],
 [
@@ -175,61 +178,72 @@ AC_DEFUN([AM_ICONV],
   dnl those with the standalone portable GNU libiconv installed).
 
   AC_ARG_WITH([libiconv-prefix],
-    AC_HELP_STRING([--with-libiconv-prefix=DIR], [search for libiconv in DIR/include and DIR/lib]), [
+    AS_HELP_STRING([--with-libiconv-prefix=DIR], [search for libiconv in DIR/include and DIR/lib]), [
     for dir in `echo "$withval" | tr : ' '`; do
       if test -d $dir/include; then LIBICONV_INCLUDE="-I$dir/include"; fi
       if test -d $dir/lib; then LIBICONV_LIBDIR="-L$dir/lib"; fi
     done
    ])
 
-  BUILD_LIBICONV_LIBDIR="-L../libiconv/lib/.libs -L../libiconv/lib/_libs"
+  BUILD_LIBICONV_LIBDIRS="../libiconv/lib/.libs ../libiconv/lib/_libs"
   BUILD_LIBICONV_INCLUDE="-I../libiconv/include"
 
   AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
     am_cv_func_iconv="no, consider installing GNU libiconv"
     am_cv_lib_iconv=no
     am_cv_use_build_libiconv=no
-    # First, try to find iconv in libc.
-    AC_TRY_LINK([#include <stdlib.h>
+    am_cv_build_libiconv_path=
+
+    # If libiconv is part of the build tree, then try using it over
+    # any system iconv.
+    if test -d ../libiconv; then
+      for lib_dir in $BUILD_LIBICONV_LIBDIRS; do
+        am_save_LIBS="$LIBS"
+        am_save_CPPFLAGS="$CPPFLAGS"
+        LIBS="$LIBS $lib_dir/libiconv.a"
+        CPPFLAGS="$CPPFLAGS $BUILD_LIBICONV_INCLUDE"
+        AC_TRY_LINK([#include <stdlib.h>
 #include <iconv.h>],
-      [iconv_t cd = iconv_open("","");
-       iconv(cd,NULL,NULL,NULL,NULL);
-       iconv_close(cd);],
-      am_cv_func_iconv=yes)
+          [iconv_t cd = iconv_open("","");
+           iconv(cd,NULL,NULL,NULL,NULL);
+           iconv_close(cd);],
+          am_cv_use_build_libiconv=yes
+          am_cv_build_libiconv_path=$lib_dir/libiconv.a
+          am_cv_lib_iconv=yes
+          am_cv_func_iconv=yes)
+        LIBS="$am_save_LIBS"
+        CPPFLAGS="$am_save_CPPFLAGS"
+        if test "$am_cv_use_build_libiconv" = "yes"; then
+          break
+        fi
+      done
+    fi
 
-    # If iconv was not in libc, try -liconv.  In this case, arrange to
-    # look in the libiconv prefix, if it was specified by the user.
+    # Next, try to find iconv in libc.
     if test "$am_cv_func_iconv" != yes; then
-      am_save_CPPFLAGS="$CPPFLAGS"
-      am_save_LIBS="$LIBS"
-      if test -n "$LIBICONV_INCLUDE"; then
-        CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
-        LIBS="$LIBS $LIBICONV_LIBDIR"
-      fi
-      LIBS="$LIBS -liconv"
       AC_TRY_LINK([#include <stdlib.h>
 #include <iconv.h>],
         [iconv_t cd = iconv_open("","");
          iconv(cd,NULL,NULL,NULL,NULL);
          iconv_close(cd);],
-        am_cv_lib_iconv=yes
         am_cv_func_iconv=yes)
-      LIBS="$am_save_LIBS"
-      CPPFLAGS="$am_save_CPPFLAGS"
     fi
 
-    # If that didn't work, try to find libiconv in the build tree.
-    if test "$am_cv_func_iconv" != yes && test -d ../libiconv; then
-      am_save_LIBS="$LIBS"
+    # If iconv was not in libc, try -liconv.  In this case, arrange to
+    # look in the libiconv prefix, if it was specified by the user.
+    if test "$am_cv_func_iconv" != yes; then
       am_save_CPPFLAGS="$CPPFLAGS"
-      LIBS="$LIBS $BUILD_LIBICONV_LIBDIR -liconv"
-      CPPFLAGS="$CPPFLAGS $BUILD_LIBICONV_INCLUDE"
+      am_save_LIBS="$LIBS"
+      if test -n "$LIBICONV_INCLUDE"; then
+        CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
+        LIBS="$LIBS $LIBICONV_LIBDIR"
+      fi
+      LIBS="$LIBS -liconv"
       AC_TRY_LINK([#include <stdlib.h>
 #include <iconv.h>],
         [iconv_t cd = iconv_open("","");
          iconv(cd,NULL,NULL,NULL,NULL);
          iconv_close(cd);],
-       am_cv_use_build_libiconv=yes
         am_cv_lib_iconv=yes
         am_cv_func_iconv=yes)
       LIBS="$am_save_LIBS"
@@ -247,7 +261,8 @@ AC_DEFUN([AM_ICONV],
     LIBICONV_INCLUDE=
   fi
   if test "$am_cv_use_build_libiconv" = yes; then
-    LIBICONV_LIBDIR="$BUILD_LIBICONV_LIBDIR"
+    LIBICONV="$am_cv_build_libiconv_path"
+    LIBICONV_LIBDIR=""
     LIBICONV_INCLUDE="$BUILD_LIBICONV_INCLUDE"
   fi
   CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
@@ -387,3 +402,47 @@ AC_DEFUN([CY_AC_TK_PRIVATE_HEADERS], [
     AC_MSG_RESULT(${private_dir})
   fi
 ])
+
+dnl GDB_AC_DEFINE_RELOCATABLE([VARIABLE], [ARG-NAME], [SHELL-VARIABLE])
+dnl For use in processing directory values for --with-foo.
+dnl If the path in SHELL_VARIABLE is relative to the prefix, then the
+dnl result is relocatable, then this will define the C macro
+dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
+AC_DEFUN([GDB_AC_DEFINE_RELOCATABLE], [
+  if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
+     if test "x$prefix" = xNONE; then
+       test_prefix=/usr/local
+     else
+       test_prefix=$prefix
+     fi
+  else
+     test_prefix=$exec_prefix
+  fi
+  value=0
+  case [$3] in
+     "${test_prefix}"|"${test_prefix}/"*|\
+       '${exec_prefix}'|'${exec_prefix}/'*)
+     value=1
+     ;;
+  esac
+  AC_DEFINE_UNQUOTED([$1]_RELOCATABLE, $value, [Define if the $2 directory should be relocated when GDB is moved.])
+])
+
+dnl GDB_AC_WITH_DIR([VARIABLE], [ARG-NAME], [HELP], [DEFAULT])
+dnl Add a new --with option that defines a directory.
+dnl The result is stored in VARIABLE.  AC_DEFINE_DIR is called
+dnl on this variable, as is AC_SUBST.
+dnl ARG-NAME is the base name of the argument (without "--with").
+dnl HELP is the help text to use.
+dnl If the user's choice is relative to the prefix, then the
+dnl result is relocatable, then this will define the C macro
+dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
+dnl DEFAULT is the default value, which is used if the user
+dnl does not specify the argument.
+AC_DEFUN([GDB_AC_WITH_DIR], [
+  AC_ARG_WITH([$2], AS_HELP_STRING([--with-][$2][=PATH], [$3]), [
+    [$1]=$withval], [[$1]=[$4]])
+  AC_DEFINE_DIR([$1], [$1], [$3])
+  AC_SUBST([$1])
+  GDB_AC_DEFINE_RELOCATABLE([$1], [$2], ${ac_define_dir})
+  ])
This page took 0.026082 seconds and 4 git commands to generate.