gcc does not necessarily pass runtime libpath with -R

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/Makefile b/Makefile
index 775ffaac27d7382df9db84d226603854295045d6..22b8a378c65cdfa7dfc7a6edaa0aae47662461b7 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -79,6 +79,10 @@ all:
 #
 # Define NO_ICONV if your libc does not properly support iconv.
 #
+# Define NO_R_TO_GCC if your gcc does not like "-R/path/lib" that
+# tells runtime paths to dynamic libraries; "-Wl,-rpath=/path/lib"
+# is used instead.
+#
 # Define USE_NSEC below if you want git to care about sub-second file mtimes
 # and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and
 # it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely
@@ -422,11 +426,19 @@ ifeq ($(uname_S),Darwin)
        endif
 endif
 
+ifdef NO_R_TO_GCC_LINKER
+       # Some gcc does not accept and pass -R to the linker to specify
+       # the runtime dynamic library path.
+       CC_LD_DYNPATH = -Wl,-rpath=
+else
+       CC_LD_DYNPATH = -R
+endif
+
 ifndef NO_CURL
        ifdef CURLDIR
-               # This is still problematic -- gcc does not always want -R.
+               # Try "-Wl,-rpath=$(CURLDIR)/lib" in such a case.
                BASIC_CFLAGS += -I$(CURLDIR)/include
-               CURL_LIBCURL = -L$(CURLDIR)/lib -R$(CURLDIR)/lib -lcurl
+               CURL_LIBCURL = -L$(CURLDIR)/lib $(CC_LD_DYNPATH)$(CURLDIR)/lib -lcurl
        else
                CURL_LIBCURL = -lcurl
        endif
@@ -445,9 +457,8 @@ endif
 ifndef NO_OPENSSL
        OPENSSL_LIBSSL = -lssl
        ifdef OPENSSLDIR
-               # Again this may be problematic -- gcc does not always want -R.
                BASIC_CFLAGS += -I$(OPENSSLDIR)/include
-               OPENSSL_LINK = -L$(OPENSSLDIR)/lib -R$(OPENSSLDIR)/lib
+               OPENSSL_LINK = -L$(OPENSSLDIR)/lib $(CC_LD_DYNPATH)$(OPENSSLDIR)/lib
        else
                OPENSSL_LINK =
        endif
@@ -463,9 +474,8 @@ else
 endif
 ifdef NEEDS_LIBICONV
        ifdef ICONVDIR
-               # Again this may be problematic -- gcc does not always want -R.
                BASIC_CFLAGS += -I$(ICONVDIR)/include
-               ICONV_LINK = -L$(ICONVDIR)/lib -R$(ICONVDIR)/lib
+               ICONV_LINK = -L$(ICONVDIR)/lib $(CC_LD_DYNPATH)$(ICONVDIR)/lib
        else
                ICONV_LINK =
        endif