The short and sweet PREFIX can be confused when used in many places.

Rename both usages to better describe their purpose.

Noticed when compiling Git for Windows using MSVC/Visual Studio which
reports the conflict beteeen the command line definition and the
definition in sideband.c

Signed-off-by: Philip Oakley <philipoak...@iee.org>
---
 Makefile   | 2 +-
 exec_cmd.c | 4 ++--
 sideband.c | 6 +++---
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/Makefile b/Makefile
index 33b0f76..bcdd3ec 100644
--- a/Makefile
+++ b/Makefile
@@ -1973,7 +1973,7 @@ exec_cmd.sp exec_cmd.s exec_cmd.o: GIT-PREFIX
 exec_cmd.sp exec_cmd.s exec_cmd.o: EXTRA_CPPFLAGS = \
        '-DGIT_EXEC_PATH="$(gitexecdir_SQ)"' \
        '-DBINDIR="$(bindir_relative_SQ)"' \
-       '-DPREFIX="$(prefix_SQ)"'
+       '-DEXEC_PREFIX="$(prefix_SQ)"'
 
 builtin/init-db.sp builtin/init-db.s builtin/init-db.o: GIT-PREFIX
 builtin/init-db.sp builtin/init-db.s builtin/init-db.o: EXTRA_CPPFLAGS = \
diff --git a/exec_cmd.c b/exec_cmd.c
index 9d5703a..2a79781 100644
--- a/exec_cmd.c
+++ b/exec_cmd.c
@@ -12,7 +12,7 @@ char *system_path(const char *path)
 #ifdef RUNTIME_PREFIX
        static const char *prefix;
 #else
-       static const char *prefix = PREFIX;
+       static const char *prefix = EXEC_PREFIX;
 #endif
        struct strbuf d = STRBUF_INIT;
 
@@ -27,7 +27,7 @@ char *system_path(const char *path)
            !(prefix = strip_path_suffix(argv0_path, GIT_EXEC_PATH)) &&
            !(prefix = strip_path_suffix(argv0_path, BINDIR)) &&
            !(prefix = strip_path_suffix(argv0_path, "git"))) {
-               prefix = PREFIX;
+               prefix = EXEC_PREFIX;
                trace_printf("RUNTIME_PREFIX requested, "
                                "but prefix computation failed.  "
                                "Using static fallback '%s'.\n", prefix);
diff --git a/sideband.c b/sideband.c
index fde8adc..d448ba7 100644
--- a/sideband.c
+++ b/sideband.c
@@ -13,7 +13,7 @@
  * the remote died unexpectedly.  A flush() concludes the stream.
  */
 
-#define PREFIX "remote:"
+#define DISPLAY_PREFIX "remote:"
 
 #define ANSI_SUFFIX "\033[K"
 #define DUMB_SUFFIX "        "
@@ -22,13 +22,13 @@
 
 int recv_sideband(const char *me, int in_stream, int out)
 {
-       unsigned pf = strlen(PREFIX);
+       unsigned pf = strlen(DISPLAY_PREFIX);
        unsigned sf;
        char buf[LARGE_PACKET_MAX + 2*FIX_SIZE];
        char *suffix, *term;
        int skip_pf = 0;
 
-       memcpy(buf, PREFIX, pf);
+       memcpy(buf, DISPLAY_PREFIX, pf);
        term = getenv("TERM");
        if (isatty(2) && term && strcmp(term, "dumb"))
                suffix = ANSI_SUFFIX;
-- 
2.8.1.windows.1

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