From: Charles Wilson <libtool@cwilson.fastmail.fm>
Date: Thu, 1 Jun 2006 18:42:06 +0000 (+0000)
Subject: * libtool.m4 (AC_LIBTOOL_PROG_COMPILER_PIC) [ cygwin ]:
X-Git-Tag: release-1-5-23b~38
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d02ab13af230c4dcc436d76e0a22375f43f27e8f;p=thirdparty%2Flibtool.git

* libtool.m4 (AC_LIBTOOL_PROG_COMPILER_PIC) [ cygwin ]:
define DLL_EXPORT for PIC objects on cygwin.
---

diff --git a/ChangeLog b/ChangeLog
index c648443f6..738f711aa 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2006-06-01  Charles Wilson  <libtool@cwilson.fastmail.fm>
+
+	* libtool.m4 (AC_LIBTOOL_PROG_COMPILER_PIC) [ cygwin ]:
+	define DLL_EXPORT for PIC objects on cygwin.
+
 2006-05-19  Gary V. Vaughan  <gary@gnu.org>
 
 	* libtool.m4 (LT_AC_PROG_SED): AC_SUBST([SED]) for
diff --git a/libtool.m4 b/libtool.m4
index 779ea8a1e..eed228918 100644
--- a/libtool.m4
+++ b/libtool.m4
@@ -4886,12 +4886,14 @@ AC_MSG_CHECKING([for $compiler option to produce PIC])
       # like `-m68040'.
       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
       ;;
-    beos* | cygwin* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
       # PIC is the default for these OSes.
       ;;
-    mingw* | os2* | pw32*)
+    mingw* | cygwin* | os2* | pw32*)
       # This hack is so that the source file can tell whether it is being
       # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'
       ;;
     darwin* | rhapsody*)
@@ -5167,13 +5169,15 @@ AC_MSG_CHECKING([for $compiler option to produce PIC])
       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
       ;;
 
-    beos* | cygwin* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
       # PIC is the default for these OSes.
       ;;
 
-    mingw* | pw32* | os2*)
+    mingw* | cygwin* | pw32* | os2*)
       # This hack is so that the source file can tell whether it is being
       # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'
       ;;
 
@@ -5241,7 +5245,7 @@ AC_MSG_CHECKING([for $compiler option to produce PIC])
        esac
        ;;
 
-    mingw* | pw32* | os2*)
+    mingw* | cygwin* | pw32* | os2*)
       # This hack is so that the source file can tell whether it is being
       # built for inclusion in a dll (and should export symbols for example).
       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'