From: Viktor Szakats <commit@vsz.me>
Date: Fri, 29 Sep 2023 02:20:44 +0000 (+0000)
Subject: cmake: detect `HAVE_CLOCK_GETTIME_MONOTONIC_RAW`
X-Git-Tag: curl-8_4_0~75
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=da5dcb70071fc895852bc17660b0d4fed3ffbfb1;p=thirdparty%2Fcurl.git

cmake: detect `HAVE_CLOCK_GETTIME_MONOTONIC_RAW`

Based on existing autotools logic.

Ref: #11964 (effort to sync cmake detections with autotools)

Closes #11981
---

diff --git a/CMake/OtherTests.cmake b/CMake/OtherTests.cmake
index 31bb026b72..d67a9059bc 100644
--- a/CMake/OtherTests.cmake
+++ b/CMake/OtherTests.cmake
@@ -200,3 +200,22 @@ if(NOT DEFINED HAVE_GETADDRINFO_THREADSAFE)
 
   set(_source_epilogue "${_save_epilogue}")
 endif()
+
+if(NOT DEFINED HAVE_CLOCK_GETTIME_MONOTONIC_RAW)
+  set(_save_epilogue "${_source_epilogue}")
+  set(_source_epilogue "#undef inline")
+
+  add_header_include(HAVE_SYS_TYPES_H "sys/types.h")
+  add_header_include(HAVE_SYS_TIME_H "sys/time.h")
+
+  check_c_source_compiles("${_source_epilogue}
+    #include <time.h>
+    int main(void)
+    {
+      struct timespec ts;
+      (void)clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
+      return 0;
+    }" HAVE_CLOCK_GETTIME_MONOTONIC_RAW)
+
+  set(_source_epilogue "${_save_epilogue}")
+endif()
diff --git a/CMake/Platforms/WindowsCache.cmake b/CMake/Platforms/WindowsCache.cmake
index a616bf0c11..39cefd0545 100644
--- a/CMake/Platforms/WindowsCache.cmake
+++ b/CMake/Platforms/WindowsCache.cmake
@@ -103,6 +103,7 @@ if(NOT UNIX)
     set(HAVE_GETEUID 0)
     set(HAVE_UTIME 1)
     set(HAVE_GMTIME_R 0)
+    set(HAVE_CLOCK_GETTIME_MONOTONIC_RAW 0)
     set(HAVE_GETHOSTBYNAME_R 0)
     set(HAVE_SIGNAL 1)
     set(HAVE_LINUX_TCP_H 0)
diff --git a/lib/curl_config.h.cmake b/lib/curl_config.h.cmake
index 266cf13df2..ae137c0349 100644
--- a/lib/curl_config.h.cmake
+++ b/lib/curl_config.h.cmake
@@ -186,6 +186,10 @@
 /* Define to 1 if you have the clock_gettime function and monotonic timer. */
 #cmakedefine HAVE_CLOCK_GETTIME_MONOTONIC 1
 
+/* Define to 1 if you have the clock_gettime function and raw monotonic timer.
+   */
+#cmakedefine HAVE_CLOCK_GETTIME_MONOTONIC_RAW 1
+
 /* Define to 1 if you have the `closesocket' function. */
 #cmakedefine HAVE_CLOSESOCKET 1