From 3d812d4728ef6bc96921d5f6790d6f7781a8ddcc Mon Sep 17 00:00:00 2001
From: LoRd_MuldeR <mulder2@gmx.de>
Date: Tue, 8 Jun 2021 01:03:15 +0200
Subject: [PATCH] Do *not* use pthread, because the Mingw-w64 implementation
 (libwinpthread) depends on GetTickCount64() function in KERNEL32.DLL, which
 is not available in Windows XP. Also patch cURL to *not* use
 InitializeCriticalSectionEx() function, for the same reason.

---
 build.sh                   |  9 ++++++++-
 patch/curl_mutex_init.diff | 19 +++++++++++++++++++
 2 files changed, 27 insertions(+), 1 deletion(-)
 create mode 100644 patch/curl_mutex_init.diff

diff --git a/build.sh b/build.sh
index c18c701..74c9a71 100644
--- a/build.sh
+++ b/build.sh
@@ -1,4 +1,10 @@
 #!/bin/bash
+#                                 _   _ ____  _
+#                             ___| | | |  _ \| |
+#                            / __| | | | |_) | |
+#                           | (__| |_| |  _ <| |___
+#                            \___|\___/|_| \_\_____|
+
 set -e
 
 readonly MY_MARCH=i386
@@ -90,7 +96,8 @@ pkg_curl="$(find "${DEPS_DIR}" -maxdepth 1 -name 'curl-*.tar.gz' | sort -rn | he
 rm -rf "${CURL_DIR}" && mkdir "${CURL_DIR}"
 tar -xvf ${pkg_curl} --strip-components=1 -C "${CURL_DIR}"
 pushd "${CURL_DIR}"
-CFLAGS="-march=${MY_MARCH} -mtune=${MY_MTUNE} -I\"${DEPS_DIR}/include\"" LDFLAGS="-static -L\"${DEPS_DIR}/lib\"" LIBS="-latomic -lcrypt32" ./configure --disable-shared --enable-static --disable-ldap --with-zlib="${DEPS_DIR}" --with-zstd="${DEPS_DIR}" --with-brotli="${DEPS_DIR}" --with-openssl="${DEPS_DIR}" --with-ca-bundle="cacert.pem"
+patch -p1 -b < "${BASE_DIR}/patch/curl_mutex_init.diff"
+CFLAGS="-march=${MY_MARCH} -mtune=${MY_MTUNE} -I\"${DEPS_DIR}/include\"" LDFLAGS="-static -no-pthread -L\"${DEPS_DIR}/lib\"" LIBS="-latomic -lcrypt32" ./configure --disable-shared --disable-pthreads --enable-static --disable-ldap --with-zlib="${DEPS_DIR}" --with-zstd="${DEPS_DIR}" --with-brotli="${DEPS_DIR}" --with-openssl="${DEPS_DIR}" --with-ca-bundle="cacert.pem"
 make curl_LDFLAGS=-all-static
 cp -vf "${CURL_DIR}/src/curl.exe" "${BASE_DIR}/curl.exe"
 cp -vf "${DEPS_DIR}/cacert.pem" "${BASE_DIR}/cacert.pem"
diff --git a/patch/curl_mutex_init.diff b/patch/curl_mutex_init.diff
new file mode 100644
index 0000000..1c50842
--- /dev/null
+++ b/patch/curl_mutex_init.diff
@@ -0,0 +1,19 @@
+diff --git "a/D:\\_Sandbox\\curl\\curl-src\\lib\\curl_threads.h.old" "b/D:\\_Sandbox\\curl\\curl-src\\lib\\curl_threads.h"
+index e10b7a1..22fdb49 100644
+--- "a/lib/curl_threads.h"
++++ "b/lib/curl_threads.h"
+@@ -37,13 +37,7 @@
+ #  define curl_mutex_t           CRITICAL_SECTION
+ #  define curl_thread_t          HANDLE
+ #  define curl_thread_t_null     (HANDLE)0
+-#  if !defined(_WIN32_WINNT) || !defined(_WIN32_WINNT_VISTA) || \
+-      (_WIN32_WINNT < _WIN32_WINNT_VISTA) || \
+-      (defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR))
+-#    define Curl_mutex_init(m)   InitializeCriticalSection(m)
+-#  else
+-#    define Curl_mutex_init(m)   InitializeCriticalSectionEx(m, 0, 1)
+-#  endif
++#  define Curl_mutex_init(m)     InitializeCriticalSection(m)
+ #  define Curl_mutex_acquire(m)  EnterCriticalSection(m)
+ #  define Curl_mutex_release(m)  LeaveCriticalSection(m)
+ #  define Curl_mutex_destroy(m)  DeleteCriticalSection(m)