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libprofile/CommonProfiling.c: Fix according to C89.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167272 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
NAKAMURA Takumi 2012-11-02 01:32:02 +00:00
parent 9b25ff66dd
commit 875618f245
1 changed files with 2 additions and 2 deletions
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runtime/libprofile/CommonProfiling.c
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@ -36,10 +36,10 @@ static const char *OutputFilename = "llvmprof.out";
* variable is set. If it is then save it and set OutputFilename. * variable is set. If it is then save it and set OutputFilename.
*/ */
static void check_environment_variable(void) { static void check_environment_variable(void) {
const char *EnvVar;
if (SavedEnvVar) return; /* Guarantee that we can't leak memory. */ if (SavedEnvVar) return; /* Guarantee that we can't leak memory. */
const char *EnvVar = getenv("LLVMPROF_OUTPUT"); if ((EnvVar = getenv("LLVMPROF_OUTPUT")) != NULL) {
if (EnvVar) {
/* The string that getenv returns is allowed to be statically allocated, /* The string that getenv returns is allowed to be statically allocated,
* which means it may be changed by future calls to getenv, so copy it. * which means it may be changed by future calls to getenv, so copy it.
*/ */