From 91c30771b63ae3498dbcd880930e6faa975c5928 Mon Sep 17 00:00:00 2001
From: Eric Anholt <anholt@FreeBSD.org>
Date: Sat, 11 Feb 2006 02:59:38 +0000
Subject: [PATCH] Add the ability to define NO_LIBCWRAPPER to avoid libcwrapper
 brain damage. If it's true that libcwrapper usage isn't necessary ever in the
 DllLoader world, then this code should probbaly all go away.

---
 src/mesa/main/glheader.h | 2 +-
 src/mesa/main/imports.c  | 8 ++++++++
 src/mesa/main/imports.h  | 6 +++---
 3 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/src/mesa/main/glheader.h b/src/mesa/main/glheader.h
index 316a008ae30..aab7165c720 100644
--- a/src/mesa/main/glheader.h
+++ b/src/mesa/main/glheader.h
@@ -47,7 +47,7 @@
 #define GLHEADER_H
 
 
-#if defined(XFree86LOADER) && defined(IN_MODULE)
+#if defined(XFree86LOADER) && defined(IN_MODULE) && !defined(NO_LIBCWRAPPER)
 #include "xf86_ansic.h"
 #else
 #include <assert.h>
diff --git a/src/mesa/main/imports.c b/src/mesa/main/imports.c
index bf1556fe6f8..474b358eb41 100644
--- a/src/mesa/main/imports.c
+++ b/src/mesa/main/imports.c
@@ -71,6 +71,14 @@ extern int vsnprintf(char *str, size_t count, const char *fmt, va_list arg);
 #endif
 #endif
 
+/* If we don't actually want to use the libcwrapper junk (even though we're
+ * building an Xorg server module), then just undef IN_MODULE to signal that to
+ * the following code.  It's left around for now to allow compiling of newish
+ * Mesa with older servers, but this whole mess should go away at some point.
+ */
+#ifdef NO_LIBCWRAPPER
+#undef IN_MODULE
+#endif
 
 /**********************************************************************/
 /** \name Memory */
diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h
index 7ee127400af..f8c0d7cd633 100644
--- a/src/mesa/main/imports.h
+++ b/src/mesa/main/imports.h
@@ -161,7 +161,7 @@ typedef union { GLfloat f; GLint i; } fi_type;
  ***/
 #if 0 /* _mesa_sqrtf() not accurate enough - temporarily disabled */
 #  define SQRTF(X)  _mesa_sqrtf(X)
-#elif defined(XFree86LOADER) && defined(IN_MODULE)
+#elif defined(XFree86LOADER) && defined(IN_MODULE) && !defined(NO_LIBCWRAPPER)
 #  define SQRTF(X)  (float) xf86sqrt((float) (X))
 #else
 #  define SQRTF(X)  (float) sqrt((float) (X))
@@ -209,7 +209,7 @@ static INLINE GLfloat LOG2(GLfloat val)
    num.f = ((-1.0f/3) * num.f + 2) * num.f - 2.0f/3;
    return num.f + log_2;
 }
-#elif defined(XFree86LOADER) && defined(IN_MODULE)
+#elif defined(XFree86LOADER) && defined(IN_MODULE) && !defined(NO_LIBCWRAPPER)
 #define LOG2(x) ((GLfloat) (xf86log(x) * 1.442695))
 #else
 /*
@@ -281,7 +281,7 @@ static INLINE int GET_FLOAT_BITS( float x )
  *** LDEXPF: multiply value by an integral power of two
  *** FREXPF: extract mantissa and exponent from value
  ***/
-#if defined(XFree86LOADER) && defined(IN_MODULE)
+#if defined(XFree86LOADER) && defined(IN_MODULE) && !defined(NO_LIBCWRAPPER)
 #define CEILF(x)   ((GLfloat) xf86ceil(x))
 #define FLOORF(x)  ((GLfloat) xf86floor(x))
 #define FABSF(x)   ((GLfloat) xf86fabs(x))
-- 
2.30.2