In -std=c99 mode GCC defines __STRICT_ANSI__ to hide non-ANSI interfaces.
This causes newlib, the Cygwin libc, to omit declarations for some POSIX
functions from system headers, which causes compilation failures.
---
configure | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/configure b/configure
index d6a5d69..bffa0cf 100755
--- a/configure
+++ b/configure
@@ -2450,6 +2450,7 @@ case $target_os in
objformat="win32"
enable dos_paths
check_cflags -fno-common
+ add_cppflags -U__STRICT_ANSI__
;;
*-dos|freedos|opendos)
network_extralibs="-lsocket"
--
1.7.1
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