MacOS building shenanigans

Author: alborrajo

CMakeLists.txt

@@ -26,6 +26,7 @@ target_compile_features(project-properties
 
 # Platform properties interface library
 add_library(platform-properties INTERFACE)
+
 if (${MSVC})
     target_compile_definitions(platform-properties INTERFACE
             _WIN32_WINNT=_WIN32_WINNT_WIN10
@@ -35,9 +36,14 @@ if (${MSVC})
 elseif(MINGW)
     target_link_libraries(platform-properties INTERFACE
             icuuc icuio icuin ws2_32 mswsock)
+elseif(APPLE)
+    set(ICU_DEBUG on)
+    find_package(ICU COMPONENTS uc i18n REQUIRED)
+    target_link_libraries(platform-properties INTERFACE
+            ICU::uc ICU::i18n)
 else()
     target_link_libraries(platform-properties INTERFACE
-            icuuc icui18n stdc++exp)
+            icuuc icui18n)
 endif()
 
 if (${MSVC})
@@ -48,6 +54,11 @@ else()
             -Wall -Wextra -Wpedantic -Wdeprecated-declarations)
 endif()
 
+if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+    target_compile_definitions(project-properties INTERFACE _GLIBCXX_HAVE_STACKTRACE)
+    target_link_libraries(project-properties INTERFACE stdc++exp)
+endif()
+
 # alicia-libserver target
 add_library(alicia-libserver STATIC
         src/libserver/data/DataDirector.cpp

COMPILING.md

@@ -13,6 +13,20 @@ You can download PostgreSQL binaries as an archive and extract them to a folder
 
 You'll also need to add the `/bin` folder to the `PATH` environment variable so that the `libpq.dll` can be found on runtime.
 
+### On MacOS
+
+Since we're using C++23 features that aren't available in Clang, you'll need to install GCC.
+The ICU library, while available on default in other platforms, has to be installed separately on MacOS.
+You'll need to ensure you're running CMake with the correct compiler and that CMake can find the ICU library.
+
+```bash
+brew install gcc
+brew install icu4c
+export CC=gcc-15 CXX=g++-15
+export ICU_ROOT="/opt/homebrew/opt/icu4c"
+export LD_FLAGS="-L/opt/homebrew/opt/icu4c/lib"
+```
+
 ## Building
 
 1. Clone the repository