From 3e287b3a26cf8928dca6285176cfdba649691cc2 Mon Sep 17 00:00:00 2001
From: Petr Hosek <petrhosek@users.noreply.github.com>
Date: Tue, 6 Jun 2023 00:56:26 -0700
Subject: [PATCH] Provide a CMake option to disable C++ exceptions (#1580)

This allows disabling the use of C++ exceptions at CMake configure time.
The value is encoded in the generated httplibTargets.cmake file and will
be used by CMake projects that import it.
---
 CMakeLists.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index de27d50..943b7a5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -75,6 +75,10 @@ string(REGEX MATCH "([0-9]+\\.?)+" _httplib_version "${_raw_version_string}")
 
 project(httplib VERSION ${_httplib_version} LANGUAGES CXX)
 
+# Lets you disable C++ exception during CMake configure time.
+# The value is used in the install CMake config file.
+option(HTTPLIB_NO_EXCEPTIONS "Disable the use of C++ exceptions" OFF)
+
 # Change as needed to set an OpenSSL minimum version.
 # This is used in the installed Cmake config file.
 set(_HTTPLIB_OPENSSL_MIN_VER "1.1.1")
@@ -229,6 +233,7 @@ target_link_libraries(${PROJECT_NAME} ${_INTERFACE_OR_PUBLIC}
 
 # Set the definitions to enable optional features
 target_compile_definitions(${PROJECT_NAME} ${_INTERFACE_OR_PUBLIC}
+	$<$<BOOL:${HTTPLIB_NO_EXCEPTIONS}>:CPPHTTPLIB_NO_EXCEPTIONS>
 	$<$<BOOL:${HTTPLIB_IS_USING_BROTLI}>:CPPHTTPLIB_BROTLI_SUPPORT>
 	$<$<BOOL:${HTTPLIB_IS_USING_ZLIB}>:CPPHTTPLIB_ZLIB_SUPPORT>
 	$<$<BOOL:${HTTPLIB_IS_USING_OPENSSL}>:CPPHTTPLIB_OPENSSL_SUPPORT>