details: https://hg.nginx.org/nginx/rev/7da71a7b141a
branches:
changeset: 7487:7da71a7b141a
user: Sergey Kandaurov <pluknet@nginx.com>
date: Thu Apr 04 16:26:56 2019 +0300
description:
Win32: preserving binary compatibility with Windows XP - Vista.

OpenSSL 1.1.0 and above uses BCrypt if available (Windows 7 or higher).
This results in an unusable binary on older Windows versions, when building
with newer Windows SDK (such as 7.0A). Using CFLAGS to define _WIN32_WINNT
allows to set a desired ABI and make sure the binary works with Windows XP.

To not mix with other potential CFLAGS uses, it is set in GNUmakefile.

diffstat:

misc/GNUmakefile | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)

diffs (13 lines):

diff -r 52d3600bc25e -r 7da71a7b141a misc/GNUmakefile
--- a/misc/GNUmakefile Thu Apr 04 16:22:03 2019 +0300
+++ b/misc/GNUmakefile Thu Apr 04 16:26:56 2019 +0300
@@ -82,7 +82,8 @@ win32:
--with-mail \
--with-stream \
--with-openssl=$(OBJS)/lib/$(OPENSSL) \
- --with-openssl-opt="no-asm no-tests" \
+ --with-openssl-opt="no-asm no-tests \
+ CFLAGS=-D_WIN32_WINNT=0x0501" \
--with-http_ssl_module \
--with-mail_ssl_module \
--with-stream_ssl_module
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