Merge commit 'a39d4083cab589d7cd6a13e8a4b8db8875261d75'

[gnulib.git] / m4 / relocatable.m4

diff --git a/m4/relocatable.m4 b/m4/relocatable.m4
index 624d7a8..93eba60 100644 (file)
--- a/m4/relocatable.m4
+++ b/m4/relocatable.m4
@@ -1,5 +1,5 @@
-# relocatable.m4 serial 8
-dnl Copyright (C) 2003, 2005-2006, 2007 Free Software Foundation, Inc.
+# relocatable.m4 serial 18
+dnl Copyright (C) 2003, 2005-2007, 2009-2014 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -13,9 +13,7 @@ dnl Supply RELOCWRAPPER-DIR as the directory where relocwrapper.c may be found.
 AC_DEFUN([gl_RELOCATABLE],
 [
   AC_REQUIRE([gl_RELOCATABLE_BODY])
-  if test $RELOCATABLE = yes; then
-    AC_LIBOBJ([relocatable])
-  fi
+  gl_RELOCATABLE_LIBRARY
   : ${RELOCATABLE_CONFIG_H_DIR='$(top_builddir)'}
   RELOCATABLE_SRC_DIR="\$(top_srcdir)/$gl_source_base"
   RELOCATABLE_BUILD_DIR="\$(top_builddir)/$gl_source_base"
@@ -32,19 +30,18 @@ AC_DEFUN([gl_RELOCATABLE_BODY],
   dnl macro's setting of INSTALL_PROGRAM to persist.
   AC_BEFORE([AC_PROG_INSTALL],[gl_RELOCATABLE_BODY])
   AC_REQUIRE([AC_LIB_LIBPATH])
-  AC_REQUIRE([gl_RELOCATABLE_LIBRARY])
+  AC_REQUIRE([gl_RELOCATABLE_LIBRARY_BODY])
   is_noop=no
   use_elf_origin_trick=no
+  use_wrapper=no
   if test $RELOCATABLE = yes; then
     # --enable-relocatable implies --disable-rpath
     enable_rpath=no
-    AC_DEFINE([ENABLE_RELOCATABLE], 1,
-      [Define to 1 if the package shall run at any location in the filesystem.])
     AC_CHECK_HEADERS([mach-o/dyld.h])
     AC_CHECK_FUNCS([_NSGetExecutablePath])
     case "$host_os" in
       mingw*) is_noop=yes ;;
-      linux*) use_elf_origin_trick=yes ;;
+      linux* | kfreebsd*) use_elf_origin_trick=yes ;;
     esac
     if test $is_noop = yes; then
       RELOCATABLE_LDFLAGS=:
@@ -59,11 +56,12 @@ AC_DEFUN([gl_RELOCATABLE_BODY],
         RELOCATABLE_LDFLAGS="\"$reloc_ldflags\" \"\$(host)\" \"\$(RELOCATABLE_LIBRARY_PATH)\""
         AC_SUBST([RELOCATABLE_LDFLAGS])
       else
+        use_wrapper=yes
         dnl Unfortunately we cannot define INSTALL_PROGRAM to a command
         dnl consisting of more than one word - libtool doesn't support this.
         dnl So we abuse the INSTALL_PROGRAM_ENV hook, originally meant for the
         dnl 'install-strip' target.
-        INSTALL_PROGRAM_ENV="RELOC_LIBRARY_PATH_VAR=\"$shlibpath_var\" RELOC_LIBRARY_PATH_VALUE=\"\$(RELOCATABLE_LIBRARY_PATH)\" RELOC_PREFIX=\"\$(prefix)\" RELOC_COMPILE_COMMAND=\"\$(CC) \$(CPPFLAGS) \$(CFLAGS) \$(LDFLAGS)\" RELOC_SRCDIR=\"\$(RELOCATABLE_SRC_DIR)\" RELOC_BUILDDIR=\"\$(RELOCATABLE_BUILD_DIR)\" RELOC_CONFIG_H_DIR=\"\$(RELOCATABLE_CONFIG_H_DIR)\" RELOC_EXEEXT=\"\$(EXEEXT)\" RELOC_INSTALL_PROG=\"$INSTALL_PROGRAM\""
+        INSTALL_PROGRAM_ENV="RELOC_LIBRARY_PATH_VAR=\"$shlibpath_var\" RELOC_LIBRARY_PATH_VALUE=\"\$(RELOCATABLE_LIBRARY_PATH)\" RELOC_PREFIX=\"\$(prefix)\" RELOC_DESTDIR=\"\$(DESTDIR)\" RELOC_COMPILE_COMMAND=\"\$(CC) \$(CPPFLAGS) \$(CFLAGS) \$(LDFLAGS)\" RELOC_SRCDIR=\"\$(RELOCATABLE_SRC_DIR)\" RELOC_BUILDDIR=\"\$(RELOCATABLE_BUILD_DIR)\" RELOC_CONFIG_H_DIR=\"\$(RELOCATABLE_CONFIG_H_DIR)\" RELOC_EXEEXT=\"\$(EXEEXT)\" RELOC_STRIP_PROG=\"\$(RELOCATABLE_STRIP)\" RELOC_INSTALL_PROG=\"$INSTALL_PROGRAM\""
         AC_SUBST([INSTALL_PROGRAM_ENV])
         case "$ac_aux_dir" in
           /*) INSTALL_PROGRAM="$ac_aux_dir/install-reloc" ;;
@@ -74,12 +72,19 @@ AC_DEFUN([gl_RELOCATABLE_BODY],
   fi
   AM_CONDITIONAL([RELOCATABLE_VIA_LD],
     [test $is_noop = yes || test $use_elf_origin_trick = yes])
+  AM_CONDITIONAL([RELOCATABLE_VIA_WRAPPER], [test $use_wrapper = yes])
 
   dnl RELOCATABLE_LIBRARY_PATH can be set in configure.ac. Default is empty.
   AC_SUBST([RELOCATABLE_LIBRARY_PATH])
+
   AC_SUBST([RELOCATABLE_CONFIG_H_DIR])
   AC_SUBST([RELOCATABLE_SRC_DIR])
   AC_SUBST([RELOCATABLE_BUILD_DIR])
+
+  dnl Ensure RELOCATABLE_STRIP is defined in Makefiles (at least those
+  dnl generated by automake), with value ':'.
+  RELOCATABLE_STRIP=':'
+  AC_SUBST([RELOCATABLE_STRIP])
 ])
 
 dnl Determine the platform dependent parameters needed to use relocatability:
@@ -89,7 +94,7 @@ AC_DEFUN([AC_LIB_LIBPATH],
   AC_REQUIRE([AC_LIB_PROG_LD])            dnl we use $LD
   AC_REQUIRE([AC_CANONICAL_HOST])         dnl we use $host
   AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT]) dnl we use $ac_aux_dir
-  AC_CACHE_CHECK([for shared library path variable], acl_cv_libpath, [
+  AC_CACHE_CHECK([for shared library path variable], [acl_cv_libpath], [
     LD="$LD" \
     ${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.libpath" "$host" > conftest.sh
     . ./conftest.sh