Fix ?: statements.

Omitting the first branch in ?: is a GNU extension.  Cute,
but not supported by other compilers.  Replaced mostly
by explicit tests.  Calls to getenv() simply are repeated
on non-GNU compilers.

Signed-off-by: Jason Riedy <ejr@cs.berkeley.edu>

diff --git a/apply.c b/apply.c
index 7c1a841..ee59be6 100644 (file)
--- a/apply.c
+++ b/apply.c
@@ -1377,7 +1377,7 @@ static struct excludes {
 
 static int use_patch(struct patch *p)
 {
-       const char *pathname = p->new_name ? : p->old_name;
+       const char *pathname = p->new_name ? p->new_name : p->old_name;
        struct excludes *x = excludes;
        while (x) {
                if (fnmatch(x->path, pathname, 0) == 0)

diff --git a/cache.h b/cache.h
index e7f5a2e..e4f4664 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -58,7 +58,11 @@
  * We accept older names for now but warn.
  */
 extern char *gitenv_bc(const char *);
+#ifdef __GNUC__
 #define gitenv(e) (getenv(e) ? : gitenv_bc(e))
+#else
+#define gitenv(e) (getenv(e) ? getenv(e) : gitenv_bc(e))
+#endif
 
 /*
  * Basic data structures for the directory cache

diff --git a/connect.c b/connect.c
index a6657b1..c0bf869 100644 (file)
--- a/connect.c
+++ b/connect.c
@@ -383,8 +383,10 @@ int git_connect(int fd[2], char *url, const char *prog)
                close(pipefd[1][0]);
                close(pipefd[1][1]);
                if (protocol == PROTO_SSH) {
-                       const char *ssh = getenv("GIT_SSH") ? : "ssh";
-                       const char *ssh_basename = strrchr(ssh, '/');
+                       const char *ssh, *ssh_basename;
+                       ssh = getenv("GIT_SSH");
+                       if (!ssh) ssh = "ssh";
+                       ssh_basename = strrchr(ssh, '/');
                        if (!ssh_basename)
                                ssh_basename = ssh;
                        else

diff --git a/diff.c b/diff.c
index 137d0d0..9015c81 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -19,6 +19,7 @@ static const char *external_diff(void)
 {
        static const char *external_diff_cmd = NULL;
        static int done_preparing = 0;
+       const char *env_diff_opts;
 
        if (done_preparing)
                return external_diff_cmd;
@@ -31,11 +32,11 @@ static const char *external_diff(void)
         *
         * GIT_DIFF_OPTS="-c";
         */
-       if (gitenv("GIT_EXTERNAL_DIFF"))
-               external_diff_cmd = gitenv("GIT_EXTERNAL_DIFF");
+       external_diff_cmd = gitenv("GIT_EXTERNAL_DIFF");
 
        /* In case external diff fails... */
-       diff_opts = gitenv("GIT_DIFF_OPTS") ? : diff_opts;
+       env_diff_opts = gitenv("GIT_DIFF_OPTS");
+       if (env_diff_opts) diff_opts = env_diff_opts;
 
        done_preparing = 1;
        return external_diff_cmd;
@@ -530,10 +531,12 @@ static void run_external_diff(const char *pgm,
        pid_t pid;
        int status;
        static int atexit_asked = 0;
+       const char *othername;
 
+       othername = (other? other : name);
        if (one && two) {
                prepare_temp_file(name, &temp[0], one);
-               prepare_temp_file(other ? : name, &temp[1], two);
+               prepare_temp_file(othername, &temp[1], two);
                if (! atexit_asked &&
                    (temp[0].name == temp[0].tmp_path ||
                     temp[1].name == temp[1].tmp_path)) {
@@ -574,7 +577,7 @@ static void run_external_diff(const char *pgm,
                 * otherwise we use the built-in one.
                 */
                if (one && two)
-                       builtin_diff(name, other ? : name, temp, xfrm_msg,
+                       builtin_diff(name, othername, temp, xfrm_msg,
                                     complete_rewrite);
                else
                        printf("* Unmerged path %s\n", name);
@@ -889,13 +892,13 @@ int diff_queue_is_empty(void)
 void diff_debug_filespec(struct diff_filespec *s, int x, const char *one)
 {
        fprintf(stderr, "queue[%d] %s (%s) %s %06o %s\n",
-               x, one ? : "",
+               x, one ? one : "",
                s->path,
                DIFF_FILE_VALID(s) ? "valid" : "invalid",
                s->mode,
                s->sha1_valid ? sha1_to_hex(s->sha1) : "");
        fprintf(stderr, "queue[%d] %s size %lu flags %d\n",
-               x, one ? : "",
+               x, one ? one : "",
                s->size, s->xfrm_flags);
 }
 
@@ -904,7 +907,7 @@ void diff_debug_filepair(const struct diff_filepair *p, int i)
        diff_debug_filespec(p->one, i, "one");
        diff_debug_filespec(p->two, i, "two");
        fprintf(stderr, "score %d, status %c stays %d broken %d\n",
-               p->score, p->status ? : '?',
+               p->score, p->status ? p->status : '?',
                p->source_stays, p->broken_pair);
 }
 

diff --git a/fsck-cache.c b/fsck-cache.c
index 8091780..ca24a1b 100644 (file)
--- a/fsck-cache.c
+++ b/fsck-cache.c
@@ -390,7 +390,10 @@ static int fsck_head_link(void)
        char hex[40];
        unsigned char sha1[20];
        static char path[PATH_MAX], link[PATH_MAX];
-       const char *git_dir = gitenv(GIT_DIR_ENVIRONMENT) ? : DEFAULT_GIT_DIR_ENVIRONMENT;
+       const char *git_dir;
+
+       git_dir = gitenv(GIT_DIR_ENVIRONMENT);
+       if (!git_dir) git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
 
        snprintf(path, sizeof(path), "%s/HEAD", git_dir);
        if (readlink(path, link, sizeof(link)) < 0)

diff --git a/path.c b/path.c
index b85f087..142e575 100644 (file)
--- a/path.c
+++ b/path.c
@@ -41,10 +41,12 @@ char *mkpath(const char *fmt, ...)
 
 char *git_path(const char *fmt, ...)
 {
-       const char *git_dir = gitenv(GIT_DIR_ENVIRONMENT) ? : DEFAULT_GIT_DIR_ENVIRONMENT;
+       const char *git_dir;
        va_list args;
        unsigned len;
 
+       git_dir = gitenv(GIT_DIR_ENVIRONMENT);
+       if (!git_dir) git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
        len = strlen(git_dir);
        if (len > PATH_MAX-100)
                return bad_path;

diff --git a/pull.c b/pull.c
index e7bf83b..ff55044 100644 (file)
--- a/pull.c
+++ b/pull.c
@@ -156,7 +156,7 @@ static int loop(void)
 
                //fprintf(stderr, "fetch %s\n", sha1_to_hex(obj->sha1));
                
-               if (make_sure_we_have_it(obj->type ?: "object", 
+               if (make_sure_we_have_it(obj->type ? obj->type : "object", 
                                         obj->sha1))
                        return -1;
                if (!obj->type)

diff --git a/rsh.c b/rsh.c
index bcb1c80..04cbdf7 100644 (file)
--- a/rsh.c
+++ b/rsh.c
@@ -56,8 +56,10 @@ int setup_connection(int *fd_in, int *fd_out, const char *remote_prog,
                return error("Couldn't create socket");
        }
        if (!fork()) {
-               const char *ssh = getenv("GIT_SSH") ? : "ssh";
-               const char *ssh_basename = strrchr(ssh, '/');
+               const char *ssh, *ssh_basename;
+               ssh = getenv("GIT_SSH");
+               if (!ssh) ssh = "ssh";
+               ssh_basename = strrchr(ssh, '/');
                if (!ssh_basename)
                        ssh_basename = ssh;
                else

diff --git a/sha1_file.c b/sha1_file.c
index 7766977..fa37f1e 100644 (file)
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -283,7 +283,10 @@ void prepare_alt_odb(void)
        char *map;
        int fd;
        struct stat st;
-       char *alt = gitenv(ALTERNATE_DB_ENVIRONMENT) ? : "";
+       char *alt;
+
+       alt = gitenv(ALTERNATE_DB_ENVIRONMENT);
+       if (!alt) alt = "";
 
        sprintf(path, "%s/info/alternates", get_object_directory());
        if (alt_odb_tail)

diff --git a/ssh-pull.c b/ssh-pull.c
index b7f313b..f1d8e70 100644 (file)
--- a/ssh-pull.c
+++ b/ssh-pull.c
@@ -87,7 +87,10 @@ int main(int argc, char **argv)
        char *commit_id;
        char *url;
        int arg = 1;
-       const char *prog = getenv("GIT_SSH_PUSH") ? : "git-ssh-push";
+       const char *prog;
+
+       prog = getenv("GIT_SSH_PUSH");
+       if (!prog) prog = "git-ssh-push";
 
        while (arg < argc && argv[arg][0] == '-') {
                if (argv[arg][1] == 't') {

diff --git a/ssh-push.c b/ssh-push.c
index ee424a8..5bd4569 100644 (file)
--- a/ssh-push.c
+++ b/ssh-push.c
@@ -105,10 +105,12 @@ int main(int argc, char **argv)
         char *commit_id;
         char *url;
        int fd_in, fd_out;
-       const char *prog = getenv("GIT_SSH_PULL") ? : "git-ssh-pull";
+       const char *prog;
        unsigned char sha1[20];
        char hex[41];
 
+       prog = getenv("GIT_SSH_PULL");
+       if (!prog) prog = "git-ssh-pull";
        while (arg < argc && argv[arg][0] == '-') {
                if (argv[arg][1] == 'w')
                        arg++;