vis

commit e0a184249b1c60ff0b1afb951b50f2d92765ee27
parent e2a5f6d6f9363daee145755a568407b50716be4e
Author: Randy Palamar <palamar@ualberta.ca>
Date:   Wed, 16 Aug 2023 09:13:29 -0600

build: stop setting _POSIX_C_SOURCE

from feature_test_macros(7):

> Defining _XOPEN_SOURCE with a value of 700 or greater produces the
> same effects as defining _POSIX_C_SOURCE with a value of 200809L or
> greater.

Depending on the configuration and system pkg-conf files there can be
redefinition warnings. Rather than patching with a -U_POSIX_C_SOURCE
it can just be dropped instead.

Diffstat:
M
Makefile
 | 
2
+-
M
configure
 | 
2
+-

2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/Makefile b/Makefile
@@ -46,7 +46,7 @@ CONFIG_TRE ?= 0
 CONFIG_ACL ?= 0
 CONFIG_SELINUX ?= 0
 
-CFLAGS_STD ?= -std=c99 -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700 -DNDEBUG -MMD
+CFLAGS_STD ?= -std=c99 -U_XOPEN_SOURCE -D_XOPEN_SOURCE=700 -DNDEBUG -MMD
 CFLAGS_STD += -DVERSION=\"${VERSION}\"
 LDFLAGS_STD ?= -lc
 
diff --git a/configure b/configure
@@ -220,7 +220,7 @@ tryflag   CFLAGS_TRY  -Werror=unused-command-line-argument
 tryldflag LDFLAGS_TRY -Werror=unknown-warning-option
 tryldflag LDFLAGS_TRY -Werror=unused-command-line-argument
 
-CFLAGS_STD="-std=c99 -D_POSIX_C_SOURCE=200809L -U_XOPEN_SOURCE -D_XOPEN_SOURCE=700 -DNDEBUG -MMD"
+CFLAGS_STD="-std=c99 -U_XOPEN_SOURCE -D_XOPEN_SOURCE=700 -DNDEBUG -MMD"
 LDFLAGS_STD="-lc"
 
 OS=$(uname)