configurator: Add output cflag option and macro
[ccan] / tools / configurator / configurator.c
index 73fdc952b7730be219d85cdcf530957ccf9f60a3..4cb84d0b5301b7f9a5743ecdeb44f10442561e96 100644 (file)
@@ -40,6 +40,7 @@
 
 #define DEFAULT_COMPILER "cc"
 #define DEFAULT_FLAGS "-g3 -ggdb -Wall -Wundef -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes -Wold-style-definition"
+#define DEFAULT_OUTPUT_EXE_FLAG "-o"
 
 #define OUTPUT_FILE "configurator.out"
 #define INPUT_FILE "configuratortest.c"
@@ -465,10 +466,12 @@ static char *run(const char *cmd, int *exitstatus)
        return ret;
 }
 
-static char *connect_args(const char *argv[], const char *extra)
+static char *connect_args(const char *argv[], const char *outflag,
+               const char *files)
 {
-       unsigned int i, len = strlen(extra) + 1;
+       unsigned int i;
        char *ret;
+       size_t len = strlen(outflag) + strlen(files) + 1;
 
        for (i = 1; argv[i]; i++)
                len += 1 + strlen(argv[i]);
@@ -478,10 +481,12 @@ static char *connect_args(const char *argv[], const char *extra)
        for (i = 1; argv[i]; i++) {
                strcpy(ret + len, argv[i]);
                len += strlen(argv[i]);
-               if (argv[i+1])
+               if (argv[i+1] || *outflag)
                        ret[len++] = ' ';
        }
-       strcpy(ret + len, extra);
+       strcpy(ret + len, outflag);
+       len += strlen(outflag);
+       strcpy(ret + len, files);
        return ret;
 }
 
@@ -650,33 +655,47 @@ int main(int argc, const char *argv[])
        unsigned int i;
        const char *default_args[]
                = { "", DEFAULT_COMPILER, DEFAULT_FLAGS, NULL };
+       const char *outflag = DEFAULT_OUTPUT_EXE_FLAG;
 
        if (argc > 0)
                progname = argv[0];
 
-       if (argc > 1) {
+       while (argc > 1) {
                if (strcmp(argv[1], "--help") == 0) {
-                       printf("Usage: configurator [-v] [<compiler> <flags>...]\n"
-                              "  <compiler> <flags> will have \"-o <outfile> <infile.c>\" appended\n"
-                              "Default: %s %s\n",
-                              DEFAULT_COMPILER, DEFAULT_FLAGS);
+                       printf("Usage: configurator [-v] [-O<outflag>] [<compiler> <flags>...]\n"
+                              "  <compiler> <flags> will have \"<outflag> <outfile> <infile.c>\" appended\n"
+                              "Default: %s %s %s\n",
+                              DEFAULT_COMPILER, DEFAULT_FLAGS,
+                              DEFAULT_OUTPUT_EXE_FLAG);
                        exit(0);
                }
-               if (strcmp(argv[1], "-v") == 0) {
+               if (strncmp(argv[1], "-O", 2) == 0) {
                        argc--;
                        argv++;
-                       verbose = 1;
+                       outflag = argv[1] + 2;
+                       if (!*outflag) {
+                               fprintf(stderr,
+                                       "%s: option requires an argument -- O\n",
+                                       argv[0]);
+                               exit(1);
+                       }
+               } else if (strcmp(argv[1], "-v") == 0) {
+                       argc--;
+                       argv++;
+                       verbose++;
                } else if (strcmp(argv[1], "-vv") == 0) {
                        argc--;
                        argv++;
-                       verbose = 2;
+                       verbose += 2;
+               } else {
+                       break;
                }
        }
 
        if (argc == 1)
                argv = default_args;
 
-       cmd = connect_args(argv, " -o " OUTPUT_FILE " " INPUT_FILE);
+       cmd = connect_args(argv, outflag, OUTPUT_FILE " " INPUT_FILE);
        for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++)
                run_test(cmd, &tests[i]);
        free(cmd);
@@ -691,9 +710,10 @@ int main(int argc, const char *argv[])
        printf("#define _GNU_SOURCE /* Always use GNU extensions. */\n");
        printf("#endif\n");
        printf("#define CCAN_COMPILER \"%s\"\n", argv[1]);
-       cmd = connect_args(argv+1, "");
-       printf("#define CCAN_CFLAGS \"%s\"\n\n", cmd);
+       cmd = connect_args(argv + 1, "", "");
+       printf("#define CCAN_CFLAGS \"%s\"\n", cmd);
        free(cmd);
+       printf("#define CCAN_OUTPUT_EXE_CFLAG \"%s\"\n\n", outflag);
        /* This one implies "#include <ccan/..." works, eg. for tdb2.h */
        printf("#define HAVE_CCAN 1\n");
        for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++)