X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=aclocal.m4;h=af7c8a9912cfada46b8e687390f82c8188752c6a;hb=182b16bccea2eab1a8af93a6246db3d391e436c7;hp=ea3c4b24f0f005ef474f1686100849fc3369b2d8;hpb=b38fc90a990ebdc9bb30525e1656f7fc80c3c170;p=ghc-hetmet.git

diff --git a/aclocal.m4 b/aclocal.m4
index ea3c4b2..af7c8a9 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -758,77 +758,23 @@ undefine([AC_CV_NAME])dnl
 undefine([AC_CV_NAME_supported])dnl
 ])
 
-dnl Based on AC_TRY_LINK - run iftrue if links cleanly with no warning
 
-dnl FPTOOLS_TRY_LINK_NOWARN(flags,main?,iftrue,iffalse)
-
-AC_DEFUN(FPTOOLS_TRY_LINK_NOWARN,
-[
-ac_save_LIBS="$LIBS"
-LIBS=[$1];
-cat > conftest.$ac_ext <<EOF
-dnl This sometimes fails to find confdefs.h, for some reason.
-dnl [#]line __oline__ "[$]0"
-[#]line __oline__ "configure"
-#include "confdefs.h"
-[$2]
-int t() { return 0; }
-EOF
-if AC_TRY_EVAL(ac_link); then
-  ifelse([$3], , :, [
-    LIBS="$ac_save_LIBS"
-    rm -rf conftest*
-    $3])
-  ifelse([$4], , , [else
-    LIBS="$ac_save_LIBS"
-    rm -rf conftest*
-    $4
-])dnl
-fi
-rm -f conftest*
-]
-)
-
-dnl Loosely based on AC_CHECK_LIB in acgeneral.m4 in autoconf distribution
-
-dnl FPTOOLS_CHECK_FLAG_NOWARN(NAME, FLAG, CODE, iftrue, iffalse)
-
-AC_DEFUN(FPTOOLS_CHECK_FLAG_NOWARN,
-[AC_MSG_CHECKING([for $1])
- AC_CACHE_VAL(ac_cv_flag_$1,
-   [FPTOOLS_TRY_LINK_NOWARN("$2", [main() { $3; exit(0); } ],
-     eval "ac_cv_flag_$1=yes",
-     eval "ac_cv_flag_$1=no"
-   )]
- )
-if eval "test \"`echo '$ac_cv_flag_'$1`\" = yes"; then
-  AC_MSG_RESULT(yes)
-  LIBS="$2 $LIBS"
-  $4
-else
-  AC_MSG_RESULT(no)
-  $5
-fi
-])
-
-dnl FPTOOLS_CHECK_LIB_NOWARN(LIBRARY, FUNCTION)
-
-AC_DEFUN(FPTOOLS_CHECK_LIB_NOWARN,
-[FPTOOLS_CHECK_FLAG_NOWARN([function_$2],[],[extern char $2(); $2();],
-[changequote(, )dnl
-  ac_tr_lib=HAVE_LIB`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
- changequote([, ])dnl
- AC_DEFINE_UNQUOTED($ac_tr_lib)
-],
-[FPTOOLS_CHECK_FLAG_NOWARN([library_$1],[-l$1],[extern char $2(); $2();],
-[changequote(, )dnl
-  ac_tr_lib=HAVE_LIB`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
- changequote([, ])dnl
- AC_DEFINE_UNQUOTED($ac_tr_lib)
-],
-[]
-)])]
-)
+# FP_CHECK_FUNC(FUNCTION, PROLOGUE, BODY, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+# ---------------------------------------------------------------------------------
+# A variant of AC_CHECK_FUNCS, limited to a single FUNCTION, but with the
+# additional flexibility of specifying the PROLOGUE and BODY.
+AC_DEFUN([FP_CHECK_FUNC],
+[AS_VAR_PUSHDEF([fp_func], [fp_cv_func_$1])dnl
+AC_CACHE_CHECK([for $1], fp_func,
+[AC_LINK_IFELSE([AC_LANG_PROGRAM([$2], [$3])],
+                [AS_VAR_SET(fp_func, yes)],
+                [AS_VAR_SET(fp_func, no)])])
+AS_IF([test AS_VAR_GET(fp_func) = yes],
+      [AC_DEFINE(AS_TR_CPP(HAVE_$1), [1],
+                [Define to 1 if you have the `]$1[' function.]) $4],
+      [$5])dnl
+AS_VAR_POPDEF([fp_func])dnl
+])# FP_CHECK_FUNC
 
 
 dnl ** Check which CATALOG file we have to use with DocBook SGML.
@@ -990,14 +936,28 @@ else
   esac
 
   if test x"$use_quartz_opengl" != xyes; then
-    AC_CHECK_LIB([m], [main], [GL_LIBS="-lm $GL_LIBS"])
+    AC_CHECK_LIB([m], [atan], [GL_LIBS="-lm $GL_LIBS"])
 
     if test x"$no_x" != xyes; then
       test -n "$x_includes" && GL_CFLAGS="-I$x_includes $GL_CFLAGS"
       test -n "$x_libraries" && GL_LIBS="-L$x_libraries -lX11 $GL_LIBS"
     fi
 
-    FP_CHECK_GL_HELPER([GL], [-lopengl32 -lGL], [@%:@include <GL/gl.h>], [glEnd()])
+    FP_CHECK_GL_HELPER([GL], [-lGL -lopengl32], [@%:@include <GL/gl.h>], [glEnd()])
+
+    if test x"$no_GL" != xyes; then
+      # Ugly: To get wglGetProcAddress on Windows, we have to link with
+      # opengl32.dll, too, even when we are using Cygwin with X11.
+      case "$GL_LIBS" in
+        *-lopengl32*|*opengl32.lib*) ;;
+        *) fp_save_LIBS="$LIBS"
+           LIBS="$LIBS -lopengl32"
+           AC_TRY_LINK([@%:@include <GL/gl.h>], [glEnd()],
+             [GL_LIBS="$GL_LIBS -lopengl32"; GL_LIBS0="$GL_LIBS0 -lopengl32"])
+           LIBS="$fp_save_LIBS"
+           ;;
+      esac
+    fi
   fi
 fi