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authorRuss Cox <rsc@swtch.com>2020-01-08 22:28:44 -0500
committerRuss Cox <rsc@swtch.com>2020-01-12 15:07:42 -0500
commite0c4896ed41faa71445d9e0b1751aba5157343c9 (patch)
treec2a15c8e62edadce763f6ac3fe6bf4e521edddb3 /include
parentfafa622a5bdf71adfbb4334541c3b65f29c89ca9 (diff)
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lib9: make a p9frexp function wrapping system frexp
Under certain conditions it looks like frexp gets #defined to something else on macOS during system headers, which then breaks the declaration in libc.h.
Diffstat (limited to 'include')
-rw-r--r--include/libc.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/libc.h b/include/libc.h
index 94d5b5ca..4fa86b22 100644
--- a/include/libc.h
+++ b/include/libc.h
@@ -383,7 +383,7 @@ extern int encodefmt(Fmt*);
extern int dirmodefmt(Fmt*);
extern int exitcode(char*);
extern void exits(char*);
-extern double frexp(double, int*);
+extern double p9frexp(double, int*);
extern ulong getcallerpc(void*);
#if defined(__GNUC__) || defined(__clang__)
#define getcallerpc(x) ((ulong)__builtin_return_address(0))
@@ -436,6 +436,8 @@ extern void (*_unpin)(void);
#define atoll p9atoll
#define encrypt p9encrypt
#define decrypt p9decrypt
+#undef frexp
+#define frexp p9frexp
#define getenv p9getenv
#define getwd p9getwd
#define longjmp p9longjmp