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Fall back to execve/wait when execvp and waitpid are unavailable.

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This commit is contained in:
Bill Currie 2012-08-19 13:18:38 +09:00
parent ceea60059a
commit 358ea4ef9a
2 changed files with 12 additions and 3 deletions
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4
config.d/library_functions.m4
View file

@ -10,11 +10,11 @@ AC_FUNC_VPRINTF
AC_FUNC_VA_COPY
AC_FUNC__VA_COPY
AC_CHECK_FUNCS(
access _access connect dlopen fcntl ftime _ftime getaddrinfo \
access _access connect dlopen execvp fcntl ftime _ftime getaddrinfo \
gethostbyname gethostname getnameinfo getpagesize gettimeofday getuid \
getwd ioctl mkdir _mkdir mprotect putenv select snprintf _snprintf \
socket stat strcasestr strerror strnlen strsep strstr vsnprintf \
_vsnprintf
_vsnprintf wait
)
DL_LIBS=""

11
tools/qfcc/source/cpp.c
View file

@ -259,7 +259,11 @@ preprocess_file (const char *filename, const char *ext)
printf ("%s ", *a);
puts("");
}
#ifdef HAVE_EXECVP
execvp (cpp_argv[0], (char **)cpp_argv);
#else
execve (cpp_argv[0], (char **)cpp_argv, environ);
#endif
perror (cpp_argv[0]);
exit (1);
} else {
@ -268,7 +272,12 @@ preprocess_file (const char *filename, const char *ext)
pid_t rc;
// printf ("pid = %d\n", pid);
if ((rc = waitpid (0, &status, 0 | WUNTRACED)) != pid) {
#ifdef HAVE_WAITPID
rc = waitpid (0, &status, 0 | WUNTRACED);
#else
rc = wait (&status);
#endif
if ((rc) != pid) {
if (rc == -1) {
perror ("wait");
return 0;