30 lines
948 B
Diff
30 lines
948 B
Diff
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Fix musl build
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musl does not define __GNUC_PREREQ. Use patch from Alpine Linux
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(http://git.alpinelinux.org/cgit/aports/plain/main/celt051/fix-gnuc-prereq.patch).
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Fixes http://autobuild.buildroot.net/results/223/223ba6003bdd7e0c896455c21fa8fee943b4e716/
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Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
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--- celt-0.5.1.3.orig/libcelt/ecintrin.h
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+++ celt-0.5.1.3/libcelt/ecintrin.h
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@@ -52,8 +52,7 @@
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/*Count leading zeros.
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This macro should only be used for implementing ec_ilog(), if it is defined.
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All other code should use EC_ILOG() instead.*/
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-#ifdef __GNUC_PREREQ
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-#if __GNUC_PREREQ(3,4)
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+#if defined(__GNUC__) && ((__GNUC__<<16)+__GNUC_MINOR__) >= 0x304
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# if INT_MAX>=2147483647
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# define EC_CLZ0 sizeof(unsigned)*CHAR_BIT
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# define EC_CLZ(_x) (__builtin_clz(_x))
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@@ -61,7 +60,6 @@
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# define EC_CLZ0 sizeof(unsigned long)*CHAR_BIT
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# define EC_CLZ(_x) (__builtin_clzl(_x))
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# endif
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-#endif
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#endif
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#if defined(EC_CLZ)
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