Switch over to gnu99 compilation on default for userland.

Tested by:	make universe
Tested by:	ports exp build (done by pav)
Reviewed by:	ru
Reviewed by:	silence on arch
Approved by:	ed (mentor)

6 files changed, 19 insertions, 15 deletions

diff --git a/cddl/Makefile.inc b/cddl/Makefile.inc
index 99ef333..4161c27 100644
--- a/cddl/Makefile.inc
+++ b/cddl/Makefile.inc
@@ -6,3 +6,5 @@ OPENSOLARIS_SYS_DISTDIR= ${.CURDIR}/../../../sys/cddl/contrib/opensolaris
 IGNORE_PRAGMA=	YES
 
 CFLAGS+=	-DNEED_SOLARIS_BOOLEAN
+
+CSTD?=		gnu89
diff --git a/cddl/lib/libzpool/Makefile b/cddl/lib/libzpool/Makefile
index 26d5499..54ab6c0 100644
--- a/cddl/lib/libzpool/Makefile
+++ b/cddl/lib/libzpool/Makefile
@@ -33,8 +33,6 @@ SRCS=		${ZFS_COMMON_SRCS} ${ZFS_SHARED_SRCS} \
 		${KERNEL_SRCS} ${LIST_SRCS} ${ATOMIC_SRCS} \
 		${UNICODE_SRCS}
 
-CFLAGS+=	-std=c99
-
 CFLAGS+=	-I${.CURDIR}/../../../sys/cddl/compat/opensolaris
 CFLAGS+=	-I${.CURDIR}/../../../cddl/compat/opensolaris/include
 CFLAGS+=	-I${.CURDIR}/../../../cddl/compat/opensolaris/lib/libumem
@@ -60,4 +58,6 @@ LDADD=		-lpthread -lz
 # atomic.S doesn't like profiling.
 NO_PROFILE=
 
+CSTD=	c99
+
 .include <bsd.lib.mk>
diff --git a/cddl/usr.bin/ztest/Makefile b/cddl/usr.bin/ztest/Makefile
index cc0bca4..67ade45ad 100644
--- a/cddl/usr.bin/ztest/Makefile
+++ b/cddl/usr.bin/ztest/Makefile
@@ -5,8 +5,6 @@
 PROG=	ztest
 NO_MAN=
 
-CFLAGS+= -std=c99
-
 CFLAGS+= -I${.CURDIR}/../../../sys/cddl/compat/opensolaris
 CFLAGS+= -I${.CURDIR}/../../compat/opensolaris/include
 CFLAGS+= -I${.CURDIR}/../../compat/opensolaris/lib/libumem
@@ -21,4 +19,6 @@ DPADD=	${LIBM} ${LIBNVPAIR} ${LIBUMEM} ${LIBZPOOL} \
 	${LIBPTHREAD} ${LIBZ} ${LIBAVL}
 LDADD=	-lm -lnvpair -lumem -lzpool -lpthread -lz -lavl
 
+CSTD=	c99
+
 .include <bsd.prog.mk>
diff --git a/cddl/usr.sbin/zdb/Makefile b/cddl/usr.sbin/zdb/Makefile
index f0c1b22..35ad2a1 100644
--- a/cddl/usr.sbin/zdb/Makefile
+++ b/cddl/usr.sbin/zdb/Makefile
@@ -6,8 +6,6 @@ PROG=	zdb
 MAN=	zdb.8
 SRCS=	zdb.c zdb_il.c
 
-CFLAGS+= -std=c99
-
 CFLAGS+= -I${.CURDIR}/../../../sys/cddl/compat/opensolaris
 CFLAGS+= -I${.CURDIR}/../../../cddl/compat/opensolaris/include
 CFLAGS+= -I${.CURDIR}/../../../cddl/compat/opensolaris/lib/libumem
@@ -25,4 +23,6 @@ DPADD=	${LIBAVL} ${LIBGEOM} ${LIBM} ${LIBNVPAIR} ${LIBPTHREAD} ${LIBUMEM} \
 	${LIBUUTIL} ${LIBZ} ${LIBZFS} ${LIBZPOOL}
 LDADD=	-lavl -lgeom -lm -lnvpair -lpthread -lumem -luutil -lz -lzfs -lzpool
 
+CSTD=	c99
+
 .include <bsd.prog.mk>
diff --git a/share/mk/bsd.sys.mk b/share/mk/bsd.sys.mk
index 197c1d6..34e04f8 100644
--- a/share/mk/bsd.sys.mk
+++ b/share/mk/bsd.sys.mk
@@ -8,22 +8,23 @@
 
 # for GCC:  http://gcc.gnu.org/onlinedocs/gcc-3.0.4/gcc_3.html#IDX143
 
+# the default is gnu99 for now
+CSTD		?= gnu99
+
 .if !defined(NO_WARNS) && ${CC} != "icc"
-. if defined(CSTD)
-.  if ${CSTD} == "k&r"
+. if ${CSTD} == "k&r"
 CFLAGS		+= -traditional
-.  elif ${CSTD} == "c89" || ${CSTD} == "c90"
+. elif ${CSTD} == "c89" || ${CSTD} == "c90"
 CFLAGS		+= -std=iso9899:1990
-.  elif ${CSTD} == "c94" || ${CSTD} == "c95"
+. elif ${CSTD} == "c94" || ${CSTD} == "c95"
 CFLAGS		+= -std=iso9899:199409
-.  elif ${CSTD} == "c99"
+. elif ${CSTD} == "c99"
 CFLAGS		+= -std=iso9899:1999
-.  else
+. else
 CFLAGS		+= -std=${CSTD}
-.  endif
+. endif
 # -pedantic is problematic because it also imposes namespace restrictions
 #CFLAGS		+= -pedantic
-. endif
 . if defined(WARNS)
 .  if ${WARNS} >= 1
 CWARNFLAGS	+=	-Wsystem-headers
diff --git a/tools/regression/include/tgmath/Makefile b/tools/regression/include/tgmath/Makefile
index 64626c5..53e3b9a 100644
--- a/tools/regression/include/tgmath/Makefile
+++ b/tools/regression/include/tgmath/Makefile
@@ -1,7 +1,8 @@
 # $FreeBSD$
 
 PROG=	tgmath
-CFLAGS+= -fno-builtin -std=c99
+CSTD=	c99
+CFLAGS+= -fno-builtin
 NO_MAN=
 
 .include <bsd.prog.mk>