configure: Test for flag to set rpath

This is better than the previous approach which had a hardcoded Linux-specific
value in the Makefile.

1 files changed, 12 insertions, 0 deletions

diff --git a/configure b/configure
index c5bcd071..6f0bfeac 100755
--- a/configure
+++ b/configure
@@ -393,6 +393,15 @@ rm -f compat/have_strcasestr
 
 printf "int main(void){return 0;}\n" > minimal.c
 
+printf "Checking for rpath support... "
+if ${CC} -Wl,--enable-new-dtags -Wl,-rpath,/tmp/ -o minimal minimal.c >/dev/null 2>&1
+then
+    printf "Yes.\n"
+    rpath_ldflags="-Wl,--enable-new-dtags -Wl,-rpath,\$(libdir)"
+else
+    printf "No (nothing to worry about).\n"
+fi
+
 WARN_CXXFLAGS=""
 printf "Checking for available C++ compiler warning flags... "
 for flag in -Wall -Wextra -Wwrite-strings -Wswitch-enum; do
@@ -523,6 +532,9 @@ GMIME_LDFLAGS = ${gmime_ldflags}
 TALLOC_CFLAGS = ${talloc_cflags}
 TALLOC_LDFLAGS = ${talloc_ldflags}
 
+# Flags needed to have linker set rpath attribute
+RPATH_LDFLAGS = ${rpath_ldflags}
+
 # Whether valgrind header files are available
 HAVE_VALGRIND = ${have_valgrind}