Remove unused libdl setting (mono/mono#15884)

We test dlopen with no library and in libdl later, without the
use of this setting.

Got the hint since I'm building for a configuration which had it set wrong.

Commit migrated from https://github.com/mono/mono/commit/bed4c00e02400bc49431af8b8095c76caea71220

diff --git a/src/mono/configure.ac b/src/mono/configure.ac
index 39f9548..6e5a17c 100644 (file)
--- a/src/mono/configure.ac
+++ b/src/mono/configure.ac
@@ -142,7 +142,6 @@ case "$host" in
        wasm32*)
                CFLAGS="$CFLAGS -D_REENTRANT -D_GNU_SOURCE -s WASM=1"
                CPPFLAGS="$CPPFLAGS -D_REENTRANT -DUSE_MMAP -s WASM=1"
-               libdl="-ldl"
                libgc_threads=pthreads
                platform_wasm=yes
                ;;
@@ -181,7 +180,6 @@ case "$host" in
                LDFLAGS="$LDFLAGS $WIN32_LDFLAGS"
                libmono_cflags="-mms-bitfields -mwindows"
                libmono_ldflags="-mms-bitfields -mwindows"
-               libdl=
                libgc_threads=win32
                with_sigaltstack=no
                with_tls=pthread
@@ -198,7 +196,6 @@ case "$host" in
                CPPFLAGS="$CPPFLAGS -DHOST_BSD"
                libmono_ldflags="-pthread"
                need_link_unlink=yes
-               libdl="-ldl"
                libgc_threads=pthreads
                with_sigaltstack=no
                use_sigposix=yes
@@ -208,7 +205,6 @@ case "$host" in
                CPPFLAGS="$CPPFLAGS -DGC_FREEBSD_THREADS -D_GNU_SOURCE -D_REENTRANT -DUSE_MMAP -DUSE_MUNMAP -DTHREAD_LOCAL_ALLOC -pthread"
                libmono_cflags="-D_REENTRANT -DTHREAD_LOCAL_ALLOC -pthread"
                libmono_ldflags="-lpthread -pthread"
-               libdl="-ldl"
                libgc_threads=pthreads
                need_link_unlink=yes
                with_sigaltstack=no
@@ -235,7 +231,6 @@ case "$host" in
                CPPFLAGS="$CPPFLAGS -DHOST_BSD -D_WITH_GETLINE"
                need_link_unlink=yes
                AC_DEFINE(PTHREAD_POINTER_ID, 1, [pthread is a pointer])
-               libdl=
                libgc_threads=pthreads
                use_sigposix=yes
                has_dtrace=yes
@@ -261,7 +256,6 @@ case "$host" in
                LDFLAGS="$LDFLAGS -pthread"
                need_link_unlink=yes
                AC_DEFINE(PTHREAD_POINTER_ID)
-               libdl=
                libgc_threads=pthreads
                with_tls=pthread
                with_sigaltstack=no
@@ -278,7 +272,6 @@ case "$host" in
                        CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
                fi
                libmono_cflags="-D_REENTRANT"
-               libdl="-ldl"
                libgc_threads=pthreads
                use_sigposix=yes
 
@@ -316,7 +309,6 @@ case "$host" in
                        CPPFLAGS="$CPPFLAGS -DUSE_MUNMAP"
                fi
                libmono_cflags="-D_REENTRANT"
-               libdl="-ldl"
                libgc_threads=pthreads
                CORETARGETS="-p:TargetsUnix=true"
                use_sigposix=yes
@@ -411,7 +403,6 @@ case "$host" in
                AC_DEFINE(PTHREAD_POINTER_ID)
                AC_DEFINE(USE_MACH_SEMA, 1, [...])
                CORETARGETS="-p:TargetsUnix=true -p:TargetsOSX=true"
-               libdl=
                libgc_threads=pthreads
                has_dtrace=yes
                if test "x$cross_compiling" = "xyes"; then
@@ -453,7 +444,6 @@ case "$host" in
                dnl BSD_SOURCE is for getifaddrs
                CPPFLAGS="$CPPFLAGS -D_BSD_SOURCE -D_REENTRANT -D_THREAD_SAFE"
                libmono_cflags="-D_REENTRANT -D_THREAD_SAFE"
-               libdl=
                LIBS="$LIBS -lnetwork -ltextencoding"
                need_link_unlink=yes
                AC_DEFINE(PTHREAD_POINTER_ID)
@@ -544,7 +534,6 @@ case "$host" in
                ;;
        *)
                AC_MSG_WARN([*** Please add $host to configure.ac checks!])
-               libdl="-ldl"
                ;;
 esac