This file is part of MXE. See LICENSE.md for licensing information.

Contains ad hoc patches for cross building.

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jonas Kvinge <jonas@jkvinge.net>
Date: Mon, 10 Oct 2022 23:06:29 +0200
Subject: [PATCH 1/1] mingw build fixes


diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1111111..2222222 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -288,6 +288,11 @@ else()
     endif ()
 endif()
 
+if (MINGW)
+    set(EXTRA_C_FLAGS "${EXTRA_C_FLAGS} -posix")
+    set(EXTRA_CXX_FLAGS "${EXTRA_CXX_FLAGS} -posix")
+endif()
+
 CHECK_INCLUDE_FILES(unistd.h HAVE_UNISTD_H)
 CHECK_INCLUDE_FILES(intrin.h HAVE_C_INTRIN_H)
 CHECK_INCLUDE_FILE_CXX(intrin.h HAVE_CXX_INTRIN_H)
@@ -344,7 +349,7 @@ CHECK_C_SOURCE_COMPILES("void *aa_test(void *x) { return __builtin_assume_aligne
 CHECK_CXX_SOURCE_COMPILES("void *aa_test(void *x) { return __builtin_assume_aligned(x, 16);}\nint main(void) { return 0; }" HAVE_CXX_BUILTIN_ASSUME_ALIGNED)
 CHECK_C_SOURCE_COMPILES("int main(void) { __builtin_constant_p(0); }" HAVE__BUILTIN_CONSTANT_P)
 
-if (NOT WIN32)
+if (MINGW OR NOT WIN32)
 set(C_FLAGS_TO_CHECK
 # Variable length arrays are way bad, most especially at run time
 "-Wvla"
@@ -444,7 +449,7 @@ if(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
     set(FREEBSD true)
 endif(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
 
-if(NOT WIN32)
+if(MINGW OR NOT WIN32)
 if(CMAKE_C_COMPILER_ID MATCHES "Intel")
     SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -diag-error 10006 -diag-disable 68 -diag-disable 177 -diag-disable 186 -diag-disable 2304 -diag-disable 2305 -diag-disable 2338 -diag-disable 1418 -diag-disable 279 -diag-disable=remark")
 endif()
@@ -466,7 +471,7 @@ endif()
 add_subdirectory(util)
 add_subdirectory(doc/dev-reference)
 
-if (NOT WIN32)
+if (MINGW OR NOT WIN32)
 # PCRE check, we have a fixed requirement for PCRE to use Chimera
 # and hscollider
 set(PCRE_REQUIRED_MAJOR_VERSION 8)
@@ -495,7 +500,7 @@ endif()
 configure_file(${CMAKE_MODULE_PATH}/config.h.in ${PROJECT_BINARY_DIR}/config.h)
 configure_file(src/hs_version.h.in ${PROJECT_BINARY_DIR}/hs_version.h)
 
-if (NOT WIN32)
+if (MINGW OR NOT WIN32)
     # expand out library names for pkgconfig static link info
     foreach (LIB ${CMAKE_CXX_IMPLICIT_LINK_LIBRARIES})
         # this is fragile, but protects us from toolchain specific files
@@ -518,7 +523,7 @@ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_C_FLAGS}")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${EXTRA_CXX_FLAGS}")
 endif()
 
-if (WIN32)
+if (WIN32 AND NOT MINGW)
 # PCRE check, we have a fixed requirement for PCRE to use Chimera
 # and hscollider
 set(PCRE_REQUIRED_MAJOR_VERSION 8)
@@ -543,7 +548,7 @@ if (EXISTS ${CMAKE_SOURCE_DIR}/chimera/CMakeLists.txt AND BUILD_CHIMERA)
 endif()
 endif()
 
-if(NOT WIN32)
+if(MINGW OR NOT WIN32)
 set(RAGEL_C_FLAGS "-Wno-unused")
 endif()
 
diff --git a/chimera/CMakeLists.txt b/chimera/CMakeLists.txt
index 1111111..2222222 100644
--- a/chimera/CMakeLists.txt
+++ b/chimera/CMakeLists.txt
@@ -33,7 +33,7 @@ target_link_libraries(chimera hs pcre)
 
 install(TARGETS chimera DESTINATION ${CMAKE_INSTALL_LIBDIR})
 
-if (NOT WIN32)
+if (MINGW OR NOT WIN32)
     # expand out library names for pkgconfig static link info
     foreach (LIB ${CMAKE_CXX_IMPLICIT_LINK_LIBRARIES})
         # this is fragile, but protects us from toolchain specific files
diff --git a/libhs.pc.in b/libhs.pc.in
index 1111111..2222222 100644
--- a/libhs.pc.in
+++ b/libhs.pc.in
@@ -8,4 +8,4 @@ Description: Intel(R) Hyperscan Library
 Version: @HS_VERSION@
 Libs: -L${libdir} -lhs
 Libs.private: @PRIVATE_LIBS@
-Cflags: -I${includedir}/hs
+Cflags: -I${includedir}/hs -posix
diff --git a/src/database.c b/src/database.c
index 1111111..2222222 100644
--- a/src/database.c
+++ b/src/database.c
@@ -353,7 +353,7 @@ hs_error_t dbIsValid(const hs_database_t *db) {
     return HS_SUCCESS;
 }
 
-#if defined(_WIN32)
+#if NATIVE_WIN32
 #define SNPRINTF_COMPAT _snprintf
 #else
 #define SNPRINTF_COMPAT snprintf
diff --git a/src/nfa/nfa_internal.h b/src/nfa/nfa_internal.h
index 1111111..2222222 100644
--- a/src/nfa/nfa_internal.h
+++ b/src/nfa/nfa_internal.h
@@ -234,7 +234,7 @@ int isMultiTopType(u8 t) {
 
 /** Macros used in place of unimplemented NFA API functions for a given
  * engine. */
-#if !defined(_WIN32)
+#if !NATIVE_WIN32
 
 /* Use for functions that return an integer. */
 #define NFA_API_NO_IMPL(...)                                                   \
diff --git a/src/ue2common.h b/src/ue2common.h
index 1111111..2222222 100644
--- a/src/ue2common.h
+++ b/src/ue2common.h
@@ -46,7 +46,7 @@
 #include <stdint.h>
 
 /* ick */
-#if defined(_WIN32)
+#if NATIVE_WIN32
 #define ALIGN_ATTR(x) __declspec(align(x))
 #else
 #define ALIGN_ATTR(x) __attribute__((aligned((x))))
@@ -83,7 +83,7 @@ typedef u32 ReportID;
 
 /* Shorthand for attribute to mark a function as part of our public API.
  * Functions without this attribute will be hidden. */
-#if !defined(_WIN32)
+#if !NATIVE_WIN32
 #define HS_PUBLIC_API     __attribute__((visibility("default")))
 #else
 // TODO: dllexport defines for windows
@@ -93,14 +93,14 @@ typedef u32 ReportID;
 #define ARRAY_LENGTH(a) (sizeof(a)/sizeof((a)[0]))
 
 /** \brief Shorthand for the attribute to shut gcc about unused parameters */
-#if !defined(_WIN32)
+#if !NATIVE_WIN32
 #define UNUSED __attribute__ ((unused))
 #else
 #define UNUSED
 #endif
 
 /* really_inline forces inlining always */
-#if !defined(_WIN32)
+#if !NATIVE_WIN32
 #if defined(HS_OPTIMIZE)
 #define really_inline inline __attribute__ ((always_inline, unused))
 #else
@@ -130,7 +130,7 @@ typedef u32 ReportID;
 
 
 // We use C99-style "restrict".
-#ifdef _WIN32
+#if NATIVE_WIN32
 #ifdef __cplusplus
 #define restrict
 #else
@@ -186,7 +186,7 @@ typedef u32 ReportID;
 #define LIMIT_TO_AT_MOST(a, b) (*(a) = MIN(*(a),(b)))
 #define ENSURE_AT_LEAST(a, b) (*(a) = MAX(*(a),(b)))
 
-#ifndef _WIN32
+#if !NATIVE_WIN32
 #ifndef likely
   #define likely(x)     __builtin_expect(!!(x), 1)
 #endif
diff --git a/src/util/bitutils.h b/src/util/bitutils.h
index 1111111..2222222 100644
--- a/src/util/bitutils.h
+++ b/src/util/bitutils.h
@@ -46,7 +46,7 @@
 static really_inline
 u32 clz32(u32 x) {
     assert(x); // behaviour not defined for x == 0
-#if defined(_WIN32)
+#if NATIVE_WIN32
     unsigned long r;
     _BitScanReverse(&r, x);
     return 31 - r;
@@ -58,11 +58,11 @@ u32 clz32(u32 x) {
 static really_inline
 u32 clz64(u64a x) {
     assert(x); // behaviour not defined for x == 0
-#if defined(_WIN64)
+#if NATIVE_WIN32 && defined(_WIN64)
     unsigned long r;
     _BitScanReverse64(&r, x);
     return 63 - r;
-#elif defined(_WIN32)
+#elif NATIVE_WIN32
     unsigned long x1 = (u32)x;
     unsigned long x2 = (u32)(x >> 32);
     unsigned long r;
@@ -81,7 +81,7 @@ u32 clz64(u64a x) {
 static really_inline
 u32 ctz32(u32 x) {
     assert(x); // behaviour not defined for x == 0
-#if defined(_WIN32)
+#if NATIVE_WIN32
     unsigned long r;
     _BitScanForward(&r, x);
     return r;
@@ -93,11 +93,11 @@ u32 ctz32(u32 x) {
 static really_inline
 u32 ctz64(u64a x) {
     assert(x); // behaviour not defined for x == 0
-#if defined(_WIN64)
+#if NATIVE_WIN32 && defined(_WIN64)
     unsigned long r;
     _BitScanForward64(&r, x);
     return r;
-#elif defined(_WIN32)
+#elif NATIVE_WIN32
     unsigned long r;
     if (_BitScanForward(&r, (u32)x)) {
         return (u32)r;
diff --git a/src/util/cpuid_inline.h b/src/util/cpuid_inline.h
index 1111111..2222222 100644
--- a/src/util/cpuid_inline.h
+++ b/src/util/cpuid_inline.h
@@ -32,7 +32,7 @@
 #include "ue2common.h"
 #include "cpuid_flags.h"
 
-#if !defined(_WIN32) && !defined(CPUID_H_)
+#if !NATIVE_WIN32 && !defined(CPUID_H_)
 #include <cpuid.h>
 /* system header doesn't have a header guard */
 #define CPUID_H_
@@ -46,7 +46,7 @@ extern "C"
 static inline
 void cpuid(unsigned int op, unsigned int leaf, unsigned int *eax,
            unsigned int *ebx, unsigned int *ecx, unsigned int *edx) {
-#ifndef _WIN32
+#if !NATIVE_WIN32
     __cpuid_count(op, leaf, *eax, *ebx, *ecx, *edx);
 #else
     int a[4];
@@ -95,7 +95,7 @@ void cpuid(unsigned int op, unsigned int leaf, unsigned int *eax,
 
 static inline
 u64a xgetbv(u32 op) {
-#if defined(_WIN32) || defined(__INTEL_COMPILER)
+#if NATIVE_WIN32 || defined(__INTEL_COMPILER)
     return _xgetbv(op);
 #else
     u32 a, d;
diff --git a/src/util/make_unique.h b/src/util/make_unique.h
index 1111111..2222222 100644
--- a/src/util/make_unique.h
+++ b/src/util/make_unique.h
@@ -29,7 +29,7 @@
 #ifndef UTIL_MAKE_UNIQUE_H
 #define UTIL_MAKE_UNIQUE_H
 
-#if (defined(_WIN32) || defined(_WIN64)) && (_MSC_VER > 1700)
+#if NATIVE_WIN32 && (_MSC_VER > 1700)
 // VC++ 2013 onwards has make_unique in the STL
 #define USE_STD
 #include <memory>
diff --git a/src/util/simd_utils.h b/src/util/simd_utils.h
index 1111111..2222222 100644
--- a/src/util/simd_utils.h
+++ b/src/util/simd_utils.h
@@ -33,7 +33,7 @@
 #ifndef SIMD_UTILS
 #define SIMD_UTILS
 
-#if !defined(_WIN32) && !defined(__SSSE3__)
+#if !NATIVE_WIN32 && !defined(__SSSE3__)
 #error SSSE3 instructions must be enabled
 #endif
 
diff --git a/src/util/unaligned.h b/src/util/unaligned.h
index 1111111..2222222 100644
--- a/src/util/unaligned.h
+++ b/src/util/unaligned.h
@@ -35,7 +35,7 @@
 
 #include "ue2common.h"
 
-#if !defined(_WIN32)
+#if !NATIVE_WIN32
 #define PACKED__MAY_ALIAS __attribute__((packed, may_alias))
 #else
 #define PACKED__MAY_ALIAS
@@ -89,7 +89,7 @@ void unaligned_store_u64a(void *ptr, u64a val) {
     struct unaligned *uptr = (struct unaligned *)ptr;
     uptr->u = val;
 }
-#if defined(_WIN32)
+#if NATIVE_WIN32
 #pragma pack(pop)
 #endif // win32
 
diff --git a/tools/hsbench/CMakeLists.txt b/tools/hsbench/CMakeLists.txt
index 1111111..2222222 100644
--- a/tools/hsbench/CMakeLists.txt
+++ b/tools/hsbench/CMakeLists.txt
@@ -58,7 +58,7 @@ if (BUILD_CHIMERA)
     )
     add_executable(hsbench ${hsbench_SOURCES})
     include_directories(${PCRE_INCLUDE_DIRS})
-    if(NOT WIN32)
+    if(MINGW OR NOT WIN32)
         target_link_libraries(hsbench hs chimera ${PCRE_LDFLAGS} databaseutil
             expressionutil ${SQLITE3_LDFLAGS} ${CMAKE_THREAD_LIBS_INIT})
     else()
diff --git a/tools/hscheck/CMakeLists.txt b/tools/hscheck/CMakeLists.txt
index 1111111..2222222 100644
--- a/tools/hscheck/CMakeLists.txt
+++ b/tools/hscheck/CMakeLists.txt
@@ -10,7 +10,7 @@ if (BUILD_CHIMERA)
     include_directories(${PCRE_INCLUDE_DIRS})
     add_definitions(-DHS_HYBRID)
     add_executable(hscheck ${hscheck_SOURCES})
-    if(NOT WIN32)
+    if(MINGW OR NOT WIN32)
         target_link_libraries(hscheck hs chimera ${PCRE_LDFLAGS} expressionutil pthread)
     else()
         target_link_libraries(hscheck hs chimera pcre expressionutil)
@@ -21,7 +21,7 @@ else()
     else()
         add_executable(hscheck ${hscheck_SOURCES})
     endif()
-    if(NOT WIN32)
+    if(MINGW OR NOT WIN32)
         target_link_libraries(hscheck hs expressionutil pthread)
     else()
         target_link_libraries(hscheck hs expressionutil)
diff --git a/tools/hscollider/CMakeLists.txt b/tools/hscollider/CMakeLists.txt
index 1111111..2222222 100644
--- a/tools/hscollider/CMakeLists.txt
+++ b/tools/hscollider/CMakeLists.txt
@@ -65,7 +65,7 @@ set_source_files_properties(${hscollider_SOURCES} PROPERTIES
 add_executable(hscollider ${hscollider_SOURCES})
 add_dependencies(hscollider ragel_ColliderCorporaParser)
 
-if(NOT WIN32)
+if(MINGW OR NOT WIN32)
     if (BUILD_CHIMERA)
         target_link_libraries(hscollider hs chimera ${PCRE_LDFLAGS} databaseutil
             expressionutil corpusomatic crosscompileutil pthread
diff --git a/unit/CMakeLists.txt b/unit/CMakeLists.txt
index 1111111..2222222 100644
--- a/unit/CMakeLists.txt
+++ b/unit/CMakeLists.txt
@@ -38,7 +38,7 @@ endif()
 
 add_definitions(-DGTEST_HAS_PTHREAD=0 -DSRCDIR=${PROJECT_SOURCE_DIR})
 
-if (WIN32)
+if (WIN32 AND NOT MINGW)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4309 /wd4018")
 endif()
 
diff --git a/unit/hyperscan/test_util.h b/unit/hyperscan/test_util.h
index 1111111..2222222 100644
--- a/unit/hyperscan/test_util.h
+++ b/unit/hyperscan/test_util.h
@@ -37,7 +37,7 @@
 #include <vector>
 
 #ifndef UNUSED
-#if defined(_WIN32) || defined(_WIN64)
+#if NATIVE_WIN32
 #define UNUSED
 #else
 #define UNUSED __attribute__ ((unused))
diff --git a/util/expressions.cpp b/util/expressions.cpp
index 1111111..2222222 100644
--- a/util/expressions.cpp
+++ b/util/expressions.cpp
@@ -40,7 +40,7 @@
 
 #include <sys/types.h>
 #include <sys/stat.h>
-#if !defined(_WIN32)
+#if !NATIVE_WIN32
 #include <dirent.h>
 #include <fcntl.h>
 #include <unistd.h>
@@ -98,7 +98,7 @@ void processLine(string &line, unsigned lineNum,
     }
 }
 
-#if defined(_WIN32)
+#if NATIVE_WIN32
 #define stat _stat
 #define S_ISDIR(st_m) (_S_IFDIR & (st_m))
 #define S_ISREG(st_m) (_S_IFREG & (st_m))
@@ -143,7 +143,7 @@ bool isIgnorable(const std::string &f) {
     return false;
 }
 
-#ifndef _WIN32
+#if !NATIVE_WIN32
 void loadExpressions(const string &inPath, ExpressionMap &exprMap) {
     // Is our input path a file or a directory?
     struct stat st;