[illumos] Fail to compile postgresql extension #39

# make
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -pipe -O2 -pipe -O2 -D_FORTIFY_SOURCE=2 -I/opt/local/include -I/opt/local/include/ncurses -DLDAP_DEPRECATED -I/usr/include -fPIC -I. -I./ -I/opt/local/include/postgresql/server -I/opt/local/include/postgresql/internal -I/opt/local/include -I/opt/local/include/ncurses -DLDAP_DEPRECATED -I/usr/include -I/opt/local/include/libxml2 -I/opt/local/include   -c -o redislog.o redislog.c
gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -pipe -O2 -pipe -O2 -D_FORTIFY_SOURCE=2 -I/opt/local/include -I/opt/local/include/ncurses -DLDAP_DEPRECATED -I/usr/include -fPIC -shared -o redislog.so redislog.o -L/opt/local/lib -L/opt/local/gcc49/lib/gcc/x86_64-sun-solaris2.11/4.9.4 -Wl,-R/opt/local/gcc49/lib/gcc/x86_64-sun-solaris2.11/4.9.4 -L/opt/local/lib -Wl,-R/opt/local/lib -L/usr/lib/amd64 -Wl,-R/usr/lib/amd64 -L/opt/local/lib -L/opt/local/lib -L/opt/local/lib -L/opt/local/lib  -Wl,--as-needed -Wl,-R'/opt/local/lib'  -lhiredis 
ld: fatal: unrecognized option '--as-needed'
ld: fatal: use the -z help option for usage information
collect2: error: ld returned 1 exit status
/opt/local/lib/postgresql/pgxs/src/makefiles/../../src/Makefile.shlib:315: recipe for target 'redislog.so' failed
make: *** [redislog.so] Error 1

--- /opt/local/lib/postgresql/pgxs/src/Makefile.global  2017-10-03 16:54:05.000000000 +0000
+++ Makefile.global     2017-11-09 07:42:08.015102230 +0000
@@ -277,7 +277,7 @@
 else
   LDFLAGS = -L$(top_builddir)/src/port -L$(top_builddir)/src/common
 endif
-LDFLAGS += -L/opt/local/gcc49/lib/gcc/x86_64-sun-solaris2.11/4.9.4 -Wl,-R/opt/local/gcc49/lib/gcc/x86_64-sun-solaris2.11/4.9.4 -L/opt/local/lib -Wl,-R/opt/local/lib -L/usr/lib/amd64 -Wl,-R/usr/lib/amd64 -L/opt/local/lib -L/opt/local/lib -L/opt/local/lib -L/opt/local/lib  -Wl,--as-needed
+LDFLAGS += -L/opt/local/gcc49/lib/gcc/x86_64-sun-solaris2.11/4.9.4 -Wl,-R/opt/local/gcc49/lib/gcc/x86_64-sun-solaris2.11/4.9.4 -L/opt/local/lib -Wl,-R/opt/local/lib -L/usr/lib/amd64 -Wl,-R/usr/lib/amd64 -L/opt/local/lib -L/opt/local/lib -L/opt/local/lib -L/opt/local/lib
 
 LDFLAGS_EX = 
 # LDFLAGS_SL might have already been assigned by calling makefile