Makefile: introduce SANE_TOOL_PATH for prepending required elements to PATH

Some platforms (like SunOS and family) have kept their common binaries at
some historical moment in time, and introduced new binaries with modern
features in a special location like /usr/xpg4/bin or /usr/ucb.  Some of the
features provided by these modern binaries are expected and required by git.
If the featureful binaries are not in the users path, then git could end up
using the less featureful binary and fail.

So provide a mechanism to prepend elements to the users PATH at runtime so
the modern binaries will be found.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Makefile b/Makefile
index 4f838b2c0b59b4186e6aa1cc40ba577007643aba..50002edda3c94ee4552d16d4ac8f72fa21faa743 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,11 @@ all::
 
 # Define V=1 to have a more verbose compile.
 #
+# Define SHELL_PATH to a POSIX shell if your /bin/sh is broken.
+#
+# Define SANE_TOOL_PATH to a colon-separated list of paths to prepend
+# to PATH if your tools in /usr/bin are broken.
+#
 # Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf()
 # or vsnprintf() return -1 instead of number of characters which would
 # have been written to the final string if enough space had been available.
@@ -702,6 +707,7 @@ ifeq ($(uname_S),SunOS)
        NEEDS_SOCKET = YesPlease
        NEEDS_NSL = YesPlease
        SHELL_PATH = /bin/bash
+       SANE_TOOL_PATH = /usr/xpg6/bin:/usr/xpg4/bin
        NO_STRCASESTR = YesPlease
        NO_MEMMEM = YesPlease
        NO_MKDTEMP = YesPlease
@@ -864,6 +870,13 @@ endif
 -include config.mak.autogen
 -include config.mak
 
+ifdef SANE_TOOL_PATH
+BROKEN_PATH_FIX = s|^. @@PATH@@|PATH=$(SANE_TOOL_PATH)|
+PATH := $(SANE_TOOL_PATH):${PATH}
+else
+BROKEN_PATH_FIX = d
+endif
+
 ifeq ($(uname_S),Darwin)
        ifndef NO_FINK
                ifeq ($(shell test -d /sw/lib && echo y),y)
@@ -1265,6 +1278,7 @@ $(patsubst %.sh,%,$(SCRIPT_SH)) : % : %.sh
            -e 's|@SHELL_PATH@|$(SHELL_PATH_SQ)|' \
            -e 's/@@GIT_VERSION@@/$(GIT_VERSION)/g' \
            -e 's/@@NO_CURL@@/$(NO_CURL)/g' \
+           -e '/^# @@PATH@@/$(BROKEN_PATH_FIX)' \
            $@.sh >$@+ && \
        chmod +x $@+ && \
        mv $@+ $@

diff --git a/git-sh-setup.sh b/git-sh-setup.sh
index 838233926f7ed07f781f2eb2e7547a2a5a086071..780258135c773180530af4f3ddae95cfe53aec7e 100755 (executable)
--- a/git-sh-setup.sh
+++ b/git-sh-setup.sh
@@ -11,6 +11,8 @@
 # exporting it.
 unset CDPATH
 
+# @@PATH@@:$PATH
+
 die() {
        echo >&2 "$@"
        exit 1