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@@ -0,0 +1,55 @@
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+fix compilation error when building Ghostscript 9.53.3 on top of freetype 2.10.3:
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+
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+ error: expected declaration specifiers before FF_alloc
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+
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+see also https://bugs.ghostscript.com/show_bug.cgi?id=702985
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+
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+From 41ef9a0bc36b9db7115fbe9623f989bfb47bbade Mon Sep 17 00:00:00 2001
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+From: Chris Liddell <chris.liddell@artifex.com>
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+Date: Tue, 20 Oct 2020 09:49:45 +0100
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+Subject: [PATCH] Bug 702985: drop use of FT_CALLBACK_DEF() def
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+
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+From 2.10.3, Freetype disappeared the FT_CALLBACK_DEF() macro, which is what
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+we used when defining our callbacks from Freetype.
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+
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+No guidance forthcoming from the Freetype developer who made those changes,
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+so change to explicitly declaring the callbacks file static.
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+
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+Should fix the reported build failures.
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+---
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+ base/fapi_ft.c | 6 +++---
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+ 1 file changed, 3 insertions(+), 3 deletions(-)
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+
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+diff --git a/base/fapi_ft.c b/base/fapi_ft.c
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+index 65fa6dcf4..21aef2f06 100644
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+--- a/base/fapi_ft.c
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++++ b/base/fapi_ft.c
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+@@ -125,7 +125,7 @@ static void
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+ delete_inc_int_info(gs_fapi_server * a_server,
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+ FT_IncrementalRec * a_inc_int_info);
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+
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+-FT_CALLBACK_DEF(void *)
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++static void *
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+ FF_alloc(FT_Memory memory, long size)
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+ {
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+ gs_memory_t *mem = (gs_memory_t *) memory->user;
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+@@ -133,7 +133,7 @@ FF_alloc(FT_Memory memory, long size)
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+ return (gs_malloc(mem, size, 1, "FF_alloc"));
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+ }
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+
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+-FT_CALLBACK_DEF(void *)
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++static void *
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+ FF_realloc(FT_Memory memory, long cur_size, long new_size, void *block)
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+ {
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+ gs_memory_t *mem = (gs_memory_t *) memory->user;
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+@@ -153,7 +153,7 @@ FT_CALLBACK_DEF(void *)
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+ return (tmp);
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+ }
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+
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+-FT_CALLBACK_DEF(void)
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++static void
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+ FF_free(FT_Memory memory, void *block)
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+ {
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+ gs_memory_t *mem = (gs_memory_t *) memory->user;
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+--
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+2.17.1
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