diff options
Diffstat (limited to 'pjsip-apps/src/swig/python/cc_mingw.c')
-rw-r--r-- | pjsip-apps/src/swig/python/cc_mingw.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/pjsip-apps/src/swig/python/cc_mingw.c b/pjsip-apps/src/swig/python/cc_mingw.c new file mode 100644 index 00000000..b4cf6eab --- /dev/null +++ b/pjsip-apps/src/swig/python/cc_mingw.c @@ -0,0 +1,154 @@ +/* $Id$ */ +/* + * Copyright (C) 2014 Teluu Inc. (http://www.teluu.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/* A simple proxy application for gcc/g++ to remove '-mno-cygwin' option + * when the gcc/g++ doesn't support it. Note that the option seems to be + * deprecated and causing compile error since gcc 4.7, while the option is + * auto-generated by Python distutils module (up to Python 2.7) in building + * Python extension. + */ +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +/* Find gcc executable from env var PATH but omitting current dir */ +const char* find_gcc(const char *gcc_exe) +{ + static char fname[256]; + char spath[1024 * 10]; + char *p; + + p = getenv("PATH"); + if (strlen(p) >= sizeof(spath)) { + printf("Error: find_gcc() not enough buffer 1\n"); + return NULL; + } + + strncpy(spath, p, sizeof(spath)); + p = strtok(spath, ";"); + while (p) { + int len; + + /* Skip current dir */ + if (strcmp(p, ".") == 0) { + p = strtok(NULL, ":"); + continue; + } + + len = snprintf(fname, sizeof(fname), "%s\\%s", p, gcc_exe); + if (len < 0 || len >= sizeof(fname)) { + printf("Error: find_gcc() not enough buffer 2\n"); + return NULL; + } + + if (access(fname, F_OK | X_OK) != -1) { + return fname; + } + + p = strtok(NULL, ";"); + } + + return NULL; +} + +int check_gcc_reject_mno_cygwin(const char *gcc_path) +{ + FILE *fp; + char tmp[1024]; + const char *p; + int ver; + + snprintf(tmp, sizeof(tmp), "%s -mno-cygwin 2>&1", gcc_path); + fp = popen(tmp, "r"); + if (fp == NULL) { + printf("Error: failed to run gcc\n" ); + return -1; + } + + while (fgets(tmp, sizeof(tmp), fp) != NULL) { + if (strstr(tmp, "unrecognized") && strstr(tmp, "-mno-cygwin")) + return 1; + } + + pclose(fp); + return 0; +} + +int main(int argc, const char const **argv) +{ + const char *app = "python cc_mingw.py"; + char cmd[1024 * 8], *p; + int i, len, sz; + int ret = 0; + const char *spath, *gcc_exe; + int remove_mno_cygwin; + + if (strstr(argv[0], "gcc") || strstr(argv[0], "GCC")) { + gcc_exe = "gcc.exe"; + } else if (strstr(argv[0], "g++") || strstr(argv[0], "G++")) { + gcc_exe = "g++.exe"; + } else { + printf("Error: app name not gcc/g++\n"); + return -10; + } + + /* Resolve GCC path from PATH env var */ + gcc_exe = find_gcc(gcc_exe); + if (!gcc_exe) { + printf("Error: real gcc/g++ not found\n"); + return -20; + } + + /* Check if GCC rejects '-mno-cygwin' option */ + remove_mno_cygwin = check_gcc_reject_mno_cygwin(gcc_exe); + if (remove_mno_cygwin < 0) + return -30; + + len = snprintf(cmd, sizeof(cmd), "%s", gcc_exe); + p = cmd + len; + sz = sizeof(cmd) - len; + for (i = 1; i < argc && sz > 0; ++i) { + + if (remove_mno_cygwin && strcmp(argv[i], "-mno-cygwin") == 0) { + printf("Removed option '-mno-cygwin'.\n"); + continue; + } + + len = snprintf(p, sz, " %s", argv[i]); + if (len < 0 || len >= sz) { + ret = E2BIG; + break; + } + p += len; + sz -= len; + } + + if (!ret) { + //printf("cmd = %s\n", cmd); + ret = system(cmd); + } + + if (ret) { + printf("Error: %s\n", strerror(ret)); + } + + return ret; +} |