2010-05-24 Michael Snyder <msnyder@vmware.com>

[binutils-gdb.git] / gdb / acinclude.m4

diff --git a/gdb/acinclude.m4 b/gdb/acinclude.m4
index c32e1ea4d3bb074dd392c003b42f9c2272b7bb4f..e3f604ecff6ee7fe40ec6687c1b374055c5e161c 100644 (file)
--- a/gdb/acinclude.m4
+++ b/gdb/acinclude.m4
@@ -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],
 [
@@ -182,31 +185,38 @@ AC_DEFUN([AM_ICONV],
     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
+    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
-      am_save_LIBS="$LIBS"
-      am_save_CPPFLAGS="$CPPFLAGS"
-      LIBS="$LIBS $BUILD_LIBICONV_LIBDIR -liconv"
-      CPPFLAGS="$CPPFLAGS $BUILD_LIBICONV_INCLUDE"
-      AC_TRY_LINK([#include <stdlib.h>
+      for lib_dir in $BUILD_LIBICONV_LIBDIRS; do
+        am_save_LIBS="$LIBS"
+        am_save_CPPFLAGS="$CPPFLAGS"
+        LIBS="$LIBS $lib_dir/libiconv.a"
+        CPPFLAGS="$CPPFLAGS $BUILD_LIBICONV_INCLUDE"
+        AC_TRY_LINK([#include <stdlib.h>
 #include <iconv.h>],
-        [iconv_t cd = iconv_open("","");
-         iconv(cd,NULL,NULL,NULL,NULL);
-         iconv_close(cd);],
-       am_cv_use_build_libiconv=yes
-        am_cv_lib_iconv=yes
-        am_cv_func_iconv=yes)
-      LIBS="$am_save_LIBS"
-      CPPFLAGS="$am_save_CPPFLAGS"
+          [iconv_t cd = iconv_open("","");
+           iconv(cd,NULL,NULL,NULL,NULL);
+           iconv_close(cd);],
+          am_cv_use_build_libiconv=yes
+          am_cv_build_libiconv_path=$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
 
     # Next, try to find iconv in libc.
@@ -251,7 +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"