Adjust CFLAGS to fix compilation on musl

1 files changed, 1 insertions, 1 deletions

diff --git a/config.mk b/config.mk
index 394a13f..8769b1d 100644
--- a/config.mk
+++ b/config.mk
@@ -38,7 +38,7 @@ CFLAGS ?= -g -O2
 CFLAGS += -Wall -Wextra -pedantic
 
 # Settings for glibc >= 2.19 - may need to be adjusted for other systems
-CFLAGS += -std=c11 -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=500
+CFLAGS += -std=c11 -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700
 
 ifeq (${curl},1)
 	CFLAGS += -DHAVE_LIBCURL