X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=configure;h=b967a4ed04294d76d855ee509c66337c6f21d00f;hp=13a8dcabbff53e65d23deefa0bb94ccf22fad9e6;hb=53035dafe060f6832909ad54e48277c8d3bd2d1b;hpb=d038b9320949c79503fe4b76870aaabf279405ab

diff --git a/configure b/configure
index 13a8dcab..b967a4ed 100755
--- a/configure
+++ b/configure
@@ -751,6 +751,16 @@ else
     as_needed_ldflags=""
 fi
 
+printf "Checking for -Wl,--no-undefined... "
+if ${CC} -Wl,--no-undefined -o minimal minimal.c >/dev/null 2>&1
+then
+    printf "Yes.\n"
+    no_undefined_ldflags="-Wl,--no-undefined"
+else
+    printf "No (nothing to worry about).\n"
+    no_undefined_ldflags=""
+fi
+
 WARN_CXXFLAGS=""
 printf "Checking for available C++ compiler warning flags... "
 for flag in -Wall -Wextra -Wwrite-strings; do
@@ -955,6 +965,9 @@ RPATH_LDFLAGS = ${rpath_ldflags}
 # Flags needed to have linker link only to necessary libraries
 AS_NEEDED_LDFLAGS = ${as_needed_ldflags}
 
+# Flags to have the linker flag undefined symbols in object files
+NO_UNDEFINED_LDFLAGS = ${no_undefined_ldflags}
+
 # Whether valgrind header files are available
 HAVE_VALGRIND = ${have_valgrind}