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gnu: freeglut: Fix build with GCC 10.

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* gnu/packages/patches/freeglut-gcc-compat.patch: New file.
* gnu/local.mk (dist_patch_DATA): Adjust accordingly.
* gnu/packages/gl.scm (freeglut)[source](patches): New field.
This commit is contained in:
Marius Bakke 2021-05-10 16:47:05 +02:00
parent bc0a78c003
commit 03b6cfa0c2
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3 changed files with 55 additions and 0 deletions
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1
gnu/local.mk
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@ -1018,6 +1018,7 @@ dist_patch_DATA = \
%D%/packages/patches/fplll-std-fenv.patch \
%D%/packages/patches/freedink-engine-fix-sdl-hints.patch \
%D%/packages/patches/freebayes-devendor-deps.patch \
%D%/packages/patches/freeglut-gcc-compat.patch \
%D%/packages/patches/freeimage-unbundle.patch \
%D%/packages/patches/fuse-overlapping-headers.patch \
%D%/packages/patches/gajim-honour-GAJIM_PLUGIN_PATH.patch \

1
gnu/packages/gl.scm
View file

@ -107,6 +107,7 @@ (define-public freeglut
(uri (string-append
"mirror://sourceforge/freeglut/freeglut/"
version "/freeglut-" version ".tar.gz"))
(patches (search-patches "freeglut-gcc-compat.patch"))
(sha256
(base32
"0s6sk49q8ijgbsrrryb7dzqx2fa744jhx1wck5cz5jia2010w06l"))))

53
gnu/packages/patches/freeglut-gcc-compat.patch Normal file
View file

@ -0,0 +1,53 @@
Fix build failure with GCC 10.
Taken from upstream:
https://github.com/dcnieho/FreeGLUT/commit/b9998bbc1e1c329f6bf69c24606a2be7a4973b8c
diff --git a/src/fg_gl2.c b/src/fg_gl2.c
--- a/src/fg_gl2.c
+++ b/src/fg_gl2.c
@@ -27,6 +27,20 @@
#include "fg_internal.h"
#include "fg_gl2.h"
+#ifndef GL_ES_VERSION_2_0
+/* GLES2 has the corresponding entry points built-in, and these fgh-prefixed
+ * names are defined in fg_gl2.h header to reference them, for any other case,
+ * define them as function pointers here.
+ */
+FGH_PFNGLGENBUFFERSPROC fghGenBuffers;
+FGH_PFNGLDELETEBUFFERSPROC fghDeleteBuffers;
+FGH_PFNGLBINDBUFFERPROC fghBindBuffer;
+FGH_PFNGLBUFFERDATAPROC fghBufferData;
+FGH_PFNGLENABLEVERTEXATTRIBARRAYPROC fghEnableVertexAttribArray;
+FGH_PFNGLDISABLEVERTEXATTRIBARRAYPROC fghDisableVertexAttribArray;
+FGH_PFNGLVERTEXATTRIBPOINTERPROC fghVertexAttribPointer;
+#endif
+
void FGAPIENTRY glutSetVertexAttribCoord3(GLint attrib) {
if (fgStructure.CurrentWindow != NULL)
fgStructure.CurrentWindow->Window.attribute_v_coord = attrib;
diff --git a/src/fg_gl2.h b/src/fg_gl2.h
--- a/src/fg_gl2.h
+++ b/src/fg_gl2.h
@@ -67,13 +67,13 @@ typedef void (APIENTRY *FGH_PFNGLENABLEVERTEXATTRIBARRAYPROC) (GLuint index);
typedef void (APIENTRY *FGH_PFNGLDISABLEVERTEXATTRIBARRAYPROC) (GLuint);
typedef void (APIENTRY *FGH_PFNGLVERTEXATTRIBPOINTERPROC) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
-FGH_PFNGLGENBUFFERSPROC fghGenBuffers;
-FGH_PFNGLDELETEBUFFERSPROC fghDeleteBuffers;
-FGH_PFNGLBINDBUFFERPROC fghBindBuffer;
-FGH_PFNGLBUFFERDATAPROC fghBufferData;
-FGH_PFNGLENABLEVERTEXATTRIBARRAYPROC fghEnableVertexAttribArray;
-FGH_PFNGLDISABLEVERTEXATTRIBARRAYPROC fghDisableVertexAttribArray;
-FGH_PFNGLVERTEXATTRIBPOINTERPROC fghVertexAttribPointer;
+extern FGH_PFNGLGENBUFFERSPROC fghGenBuffers;
+extern FGH_PFNGLDELETEBUFFERSPROC fghDeleteBuffers;
+extern FGH_PFNGLBINDBUFFERPROC fghBindBuffer;
+extern FGH_PFNGLBUFFERDATAPROC fghBufferData;
+extern FGH_PFNGLENABLEVERTEXATTRIBARRAYPROC fghEnableVertexAttribArray;
+extern FGH_PFNGLDISABLEVERTEXATTRIBARRAYPROC fghDisableVertexAttribArray;
+extern FGH_PFNGLVERTEXATTRIBPOINTERPROC fghVertexAttribPointer;
# endif