Add an autoconf option for mangling Mesa.

In addition to setting up the flags correctly, this renames the
generated libraries to ensure they get 'Mangled' in the name.
This is very useful for distros and the like, where mangled Mesa
and non-mangled GL libraries typically need to be installed
side-by-side.

Reviewed-by: Dan Nicholson <dbn.lists@gmail.com>

diff --git a/configs/autoconf.in b/configs/autoconf.in
index 9bbafc93aa9ca25afa5308fe2d171c7f2a0158c3..96fe5da87732b845872a943f51035b37705896ec 100644 (file)
--- a/configs/autoconf.in
+++ b/configs/autoconf.in
@@ -64,8 +64,8 @@ FLEX = @FLEX@
 BISON = @BISON@
 
 # Library names (base name)
-GL_LIB = GL
-GLU_LIB = GLU
+GL_LIB = @GL_LIB@
+GLU_LIB = @GLU_LIB@
 GLW_LIB = GLw
 OSMESA_LIB = @OSMESA_LIB@
 GLESv1_CM_LIB = GLESv1_CM

diff --git a/configure.ac b/configure.ac
index ae7b36b85ceb0d2378add6c65730bdbb0f3db5f9..3f951ecf1c12d1f31ed49022ec75a3f45d4e1760 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -349,6 +349,28 @@ else
     esac
 fi
 
+dnl
+dnl Mangled Mesa support
+dnl
+AC_ARG_ENABLE([mangling],
+  [AS_HELP_STRING([--enable-mangling],
+    [enable mangled symbols and library name @<:@default=disabled@:>@])],
+  [enable_mangling="${enableval}"],
+  [enable_mangling=no]
+)
+GL_LIB="GL"
+GLU_LIB="GLU"
+OSMESA_LIB="OSMesa"
+if test "x${enable_mangling}" = "xyes" ; then
+  DEFINES="${DEFINES} -DUSE_MGL_NAMESPACE"
+  GL_LIB="MangledGL"
+  GLU_LIB="MangledGLU"
+  OSMESA_LIB="MangledOSMesa"
+fi
+AC_SUBST([GL_LIB])
+AC_SUBST([GLU_LIB])
+AC_SUBST([OSMESA_LIB])
+
 dnl
 dnl potentially-infringing-but-nobody-knows-for-sure stuff
 dnl
@@ -1288,17 +1310,16 @@ if test "x$osmesa_bits" != x8; then
 fi
 case "x$osmesa_bits" in
 x8)
-    OSMESA_LIB=OSMesa
+    OSMESA_LIB="${OSMESA_LIB}"
     ;;
 x16|x32)
-    OSMESA_LIB="OSMesa$osmesa_bits"
+    OSMESA_LIB="${OSMESA_LIB}$osmesa_bits"
     DEFINES="$DEFINES -DCHAN_BITS=$osmesa_bits -DDEFAULT_SOFTWARE_DEPTH_BITS=31"
     ;;
 *)
     AC_MSG_ERROR([OSMesa bits '$osmesa_bits' is not a valid option])
     ;;
 esac
-AC_SUBST([OSMESA_LIB])
 
 if test "x$enable_osmesa" = xyes; then
     # only link libraries with osmesa if shared