82 lines
2.7 KiB
Diff
82 lines
2.7 KiB
Diff
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From cfcd478fe69ca1b3923f388a349a4f67ac2c03aa Mon Sep 17 00:00:00 2001
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From: Shawn Anastasio <shawn@anastas.io>
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Date: Sun, 3 Feb 2019 13:22:57 -0600
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Subject: [PATCH] Fix build on PowerPC
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On PowerPC-based architectures, SDL includes the altivec.h header
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for SIMD intrinsics. Unfortunately, altivec.h defines some types which
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conflict with C++ types like bool and std::vector. This commit adds
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a wrapper for altivec.h which resolves these conflicts and allows
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supertux to build and run.
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Tested on a ppc64le workstation.
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Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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[Retrieved from:
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https://github.com/SuperTux/supertux/pull/1056/commits/cfcd478fe69ca1b3923f388a349a4f67ac2c03aa]
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---
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CMakeLists.txt | 15 ++++++++++++++-
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src/ppc/altivec.h | 6 ++++++
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2 files changed, 20 insertions(+), 1 deletion(-)
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create mode 100644 src/ppc/altivec.h
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diff --git a/CMakeLists.txt b/CMakeLists.txt
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index 70b9673b50..b9b6ea3ea6 100644
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--- a/CMakeLists.txt
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+++ b/CMakeLists.txt
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@@ -376,6 +376,11 @@ endif()
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include(ConfigureChecks)
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+# Include altivec wrapper on ppc
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+if(CMAKE_SYSTEM_PROCESSOR MATCHES "^ppc.*")
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+ include_directories(${CMAKE_CURRENT_SOURCE_DIR}/src/ppc)
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+endif()
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+
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## Also build external/squirrel
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@@ -420,6 +425,13 @@ if(NOT EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/external/tinygettext/CMakeLists.txt)
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message(FATAL_ERROR "tinygettext submodule is not checked out or ${CMAKE_CURRENT_SOURCE_DIR}/external/tinygettext/CMakeLists.txt is missing")
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endif()
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+# Include altivec wrapper on ppc
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+if(CMAKE_SYSTEM_PROCESSOR MATCHES "^ppc.*")
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+ set(TINYGETTEXT_CXX_FLAGS "-isystem ${CMAKE_CURRENT_SOURCE_DIR}/src/ppc ${CMAKE_CXX_FLAGS}")
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+else()
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+ set(TINYGETTEXT_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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+endif()
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+
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set(TINYGETTEXT_PREFIX ${CMAKE_BINARY_DIR}/tinygettext/)
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ExternalProject_Add(tinygettext
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SOURCE_DIR "${CMAKE_SOURCE_DIR}/external/tinygettext/"
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@@ -428,7 +440,7 @@ ExternalProject_Add(tinygettext
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-DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
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-DCMAKE_C_FLAGS=${CMAKE_C_FLAGS}
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-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
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- -DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS}
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+ -DCMAKE_CXX_FLAGS=${TINYGETTEXT_CXX_FLAGS}
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-DBUILD_SHARED_LIBS=OFF
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-DHAVE_SDL=ON
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-DVCPKG_BUILD=${VCPKG_BUILD}
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@@ -443,6 +455,7 @@ set_target_properties(tinygettext_lib PROPERTIES IMPORTED_LOCATION "${TINYGETTEX
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include_directories(SYSTEM ${TINYGETTEXT_PREFIX}/include)
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+
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## external/SDL_ttf with patches
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find_package(Freetype REQUIRED)
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find_package(RAQM)
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diff --git a/src/ppc/altivec.h b/src/ppc/altivec.h
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new file mode 100644
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index 0000000000..7ede8246ed
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--- /dev/null
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+++ b/src/ppc/altivec.h
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@@ -0,0 +1,6 @@
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+#include_next <altivec.h>
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+
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+// The altivec headers redefine vector and bool which conflict
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+// with C++'s bool type and std::vector. Undefine them here.
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+#undef vector
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+#undef bool
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