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Build ELF linux/dump_syms everywhere (also for macOS and for Windows with MinGW) #20

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1f1ce2b
Add stab.h from Debian Trixie libc6-dev 2.41-12+deb13u3
illwieckz Jul 14, 2026
ea41ecc
Add compat/elf.h
illwieckz Jul 14, 2026
6f5fdb5
Add compat/mman.h
illwieckz Jul 14, 2026
cb101c6
Add compat/link.h
illwieckz Jul 14, 2026
deae767
Add compat/syscall.h
illwieckz Jul 14, 2026
1b6a34a
Add compat/inet.h
illwieckz Jul 14, 2026
b90b71c
Add compat/guiddef.h
illwieckz Jul 14, 2026
dcfda26
Add compat/paths.h
illwieckz Jul 14, 2026
9a1cb9f
Add compat/linux.h
illwieckz Jul 14, 2026
5e05321
Add macOS support to configure.ac
illwieckz Jul 14, 2026
afe3f3a
Build ELF linux/dump_syms everywhere (also for macOS and for Windows …
illwieckz Jul 14, 2026
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76 changes: 43 additions & 33 deletions Makefile.am
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Original file line number Diff line number Diff line change
Expand Up @@ -52,8 +52,8 @@ AM_CXXFLAGS += -fPIC
endif

if WINDOWS_HOST
# don't have stab.h, don't build stabs support
AM_CPPFLAGS += -DNO_STABS_SUPPORT
# Windows doesn't have stab.h
AM_CPPFLAGS += -I$(top_srcdir)/src/third_party/stab/include
endif

if MINGW_HOST
Expand All @@ -62,6 +62,10 @@ AM_CPPFLAGS += -D_POSIX_C_SOURCE
AM_CPPFLAGS += -D__USE_MINGW_ANSI_STDIO
endif

if MACOS_HOST
AM_CPPFLAGS += -Wno-deprecated-declarations

@slipher slipher Jul 22, 2026

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Warnings should just be non-fatal rather than disabled completely. See #22 (this warning is already there on master).

@illwieckz illwieckz Jul 22, 2026

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Can replace that with -Wno-error=deprecated-declarations instead.

@slipher slipher Jul 24, 2026

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-Werror should be off by default but for people who choose to turn it on, the deprecated declarations warning should be an error.

endif

# Specify include paths for ac macros
ACLOCAL_AMFLAGS = -I m4

Expand Down Expand Up @@ -391,11 +395,16 @@ bin_PROGRAMS += \
src/tools/windows/dump_syms_dwarf/dump_syms_dwarf
endif

if !DISABLE_TOOLS
bin_PROGRAMS += \
src/tools/linux/dump_syms/dump_syms
endif

if MINGW_HOST
# For MinGW, use gyp to generate a Makefile to build Windows client library
Configuration ?= Debug
all-local:
cd $(top_srcdir)/src ; ./tools/gyp/gyp --no-circular-check --no-parallel --depth=. -f make client/windows/breakpad_client.gyp
cd $(top_srcdir)/src ; GYP_DEFINES='OS=win' ./tools/gyp/gyp --no-circular-check --no-parallel --depth=. -f make client/windows/breakpad_client.gyp

@slipher slipher Jul 22, 2026

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Where does GYP_DEFINES come from?

@illwieckz illwieckz Jul 22, 2026

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$ grep -r GYP_DEFINES src/tools/gyp/
src/tools/gyp/test/defines-escaping/gyptest-defines-escaping.py:  os.environ['GYP_DEFINES'] = (
src/tools/gyp/test/defines-escaping/gyptest-defines-escaping.py:  del os.environ['GYP_DEFINES']
src/tools/gyp/test/defines-escaping/gyptest-defines-escaping.py:  os.environ['GYP_DEFINES'] = \
src/tools/gyp/test/defines-escaping/gyptest-defines-escaping.py:  del os.environ['GYP_DEFINES']
src/tools/gyp/test/defines-escaping/gyptest-defines-escaping.py:  os.environ['GYP_DEFINES'] = (
src/tools/gyp/test/defines-escaping/gyptest-defines-escaping.py:  del os.environ['GYP_DEFINES']
src/tools/gyp/test/defines-escaping/gyptest-defines-escaping.py:  os.environ['GYP_DEFINES'] = (
src/tools/gyp/test/defines-escaping/gyptest-defines-escaping.py:  del os.environ['GYP_DEFINES']
src/tools/gyp/test/defines-escaping/gyptest-defines-escaping.py:  os.environ['GYP_DEFINES'] = (
src/tools/gyp/test/defines-escaping/gyptest-defines-escaping.py:  del os.environ['GYP_DEFINES']
src/tools/gyp/test/defines-escaping/gyptest-defines-escaping.py:  os.environ['GYP_DEFINES'] = (
src/tools/gyp/test/defines-escaping/gyptest-defines-escaping.py:  del os.environ['GYP_DEFINES']
src/tools/gyp/test/defines-escaping/gyptest-defines-escaping.py:    os.environ['GYP_DEFINES'] = (
src/tools/gyp/test/defines-escaping/gyptest-defines-escaping.py:    del os.environ['GYP_DEFINES']
src/tools/gyp/test/defines-escaping/gyptest-defines-escaping.py:  os.environ['GYP_DEFINES'] = (
src/tools/gyp/test/defines-escaping/gyptest-defines-escaping.py:  del os.environ['GYP_DEFINES']
src/tools/gyp/test/defines/gyptest-define-override.py:os.environ['GYP_DEFINES'] = 'OS=fakeos'
src/tools/gyp/test/defines/gyptest-defines-env-regyp.py:  os.environ['GYP_DEFINES'] = 'value=50'
src/tools/gyp/test/defines/gyptest-defines-env-regyp.py:  os.environ['GYP_DEFINES'] = ''
src/tools/gyp/test/defines/gyptest-defines-env-regyp.py:  del os.environ['GYP_DEFINES']
src/tools/gyp/test/defines/gyptest-defines-env.py:  os.environ['GYP_DEFINES'] = 'value=10'
src/tools/gyp/test/defines/gyptest-defines-env.py:  del os.environ['GYP_DEFINES']
src/tools/gyp/test/defines/gyptest-defines-env.py:  os.environ['GYP_DEFINES'] = 'value=20'
src/tools/gyp/test/defines/gyptest-defines-env.py:  del os.environ['GYP_DEFINES']
src/tools/gyp/test/defines/gyptest-defines-env.py:  os.environ['GYP_DEFINES'] = 'value=30'
src/tools/gyp/test/defines/gyptest-defines-env.py:  del os.environ['GYP_DEFINES']
src/tools/gyp/test/defines/gyptest-defines-env.py:  os.environ['GYP_DEFINES'] = 'value=40'
src/tools/gyp/test/defines/gyptest-defines-env.py:  del os.environ['GYP_DEFINES']
src/tools/gyp/test/gyp-defines/gyptest-multiple-values.py:os.environ['GYP_DEFINES'] = 'key=value1 key=value2 key=value3'
src/tools/gyp/test/gyp-defines/gyptest-multiple-values.py:os.environ['GYP_DEFINES'] = 'key=repeated_value key=value1 key=repeated_value'
src/tools/gyp/test/gyp-defines/gyptest-regyp.py:os.environ['GYP_DEFINES'] = 'key=repeated_value key=value1 key=repeated_value'
src/tools/gyp/test/lib/TestGyp.py:    # Clear $GYP_DEFINES for the same reason.
src/tools/gyp/test/lib/TestGyp.py:    if 'GYP_DEFINES' in os.environ:
src/tools/gyp/test/lib/TestGyp.py:      del os.environ['GYP_DEFINES']
src/tools/gyp/test/msvs/external_builder/gyptest-all.py:  os.environ['GYP_DEFINES'] = 'use_external_builder=1'
src/tools/gyp/test/msvs/external_builder/gyptest-all.py:  del os.environ['GYP_DEFINES']
src/tools/gyp/test/msvs/external_builder/gyptest-all.py:  os.environ['GYP_DEFINES'] = 'use_external_builder=1'
src/tools/gyp/test/msvs/external_builder/gyptest-all.py:  del os.environ['GYP_DEFINES']
src/tools/gyp/test/variables/commands/gyptest-commands-ignore-env.py:os.environ['GYP_DEFINES'] = 'FOO=BAR'

@illwieckz illwieckz Jul 22, 2026

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Oh, damn, those are fetched with ./fetch-externals… We should really get rid of gyp!

@illwieckz illwieckz Jul 24, 2026 •
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@slipher we may have a big problem, we may be you and me the only people on Earth being able to build the dwarf mingw dump_syms thanks to our local copy (in our own computers) of a specific gyp that is not anymore the one fetched by ./fetch-externals. We need to get rid of it.

@illwieckz illwieckz Jul 24, 2026 •
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Ah no it's for the non-dwarf Windows dump_syms or even something else, but maybe this also builds libs for the dwarf one?

@illwieckz illwieckz Jul 24, 2026

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This NUKES GYP:

cd $(top_srcdir)/src ; $(MAKE) CXX="$(CXX)" CXXFLAGS="-DUNICODE -D_UNICODE $(AM_CPPFLAGS) $(CXXFLAGS)" AR="$(AR)" RC="$(WINDRES)" BUILDTYPE="$(Configuration)"
endif

Expand Down Expand Up @@ -627,36 +636,6 @@ src_tools_linux_pid2md_pid2md_SOURCES = \
src_tools_linux_pid2md_pid2md_LDADD = \
src/client/linux/libbreakpad_client.a

src_tools_linux_dump_syms_dump_syms_SOURCES = \
src/common/dwarf_cfi_to_module.cc \
src/common/dwarf_cu_to_module.cc \
src/common/dwarf_line_to_module.cc \
src/common/dwarf_range_list_handler.cc \
src/common/language.cc \
src/common/module.cc \
src/common/path_helper.cc \
src/common/stabs_reader.cc \
src/common/stabs_to_module.cc \
src/common/dwarf/bytereader.cc \
src/common/dwarf/dwarf2diehandler.cc \
src/common/dwarf/dwarf2reader.cc \
src/common/dwarf/elf_reader.cc \
src/common/linux/crc32.cc \
src/common/linux/dump_symbols.cc \
src/common/linux/dump_symbols.h \
src/common/linux/elf_symbols_to_module.cc \
src/common/linux/elf_symbols_to_module.h \
src/common/linux/elfutils.cc \
src/common/linux/file_id.cc \
src/common/linux/linux_libc_support.cc \
src/common/linux/memory_mapped_file.cc \
src/common/linux/safe_readlink.cc \
src/tools/linux/dump_syms/dump_syms.cc
src_tools_linux_dump_syms_dump_syms_CXXFLAGS = \
$(RUST_DEMANGLE_CFLAGS)
src_tools_linux_dump_syms_dump_syms_LDADD = \
$(RUST_DEMANGLE_LIBS)

src_tools_linux_md2core_minidump_2_core_SOURCES = \
src/common/linux/memory_mapped_file.cc \
src/common/path_helper.cc \
Expand Down Expand Up @@ -855,6 +834,37 @@ src_tools_windows_dump_syms_dwarf_dump_syms_dwarf_SOURCES = \
src/tools/windows/dump_syms_dwarf/dump_syms.cc
src_tools_windows_dump_syms_dwarf_dump_syms_dwarf_LDADD = \
$(SOCKET_LIBS)

src_tools_linux_dump_syms_dump_syms_SOURCES = \
src/common/dwarf_cfi_to_module.cc \
src/common/dwarf_cu_to_module.cc \
src/common/dwarf_line_to_module.cc \
src/common/dwarf_range_list_handler.cc \
src/common/language.cc \
src/common/module.cc \
src/common/path_helper.cc \
src/common/stabs_reader.cc \
src/common/stabs_to_module.cc \
src/common/dwarf/bytereader.cc \
src/common/dwarf/dwarf2diehandler.cc \
src/common/dwarf/dwarf2reader.cc \
src/common/dwarf/elf_reader.cc \
src/common/linux/crc32.cc \
src/common/linux/dump_symbols.cc \
src/common/linux/dump_symbols.h \
src/common/linux/elf_symbols_to_module.cc \
src/common/linux/elf_symbols_to_module.h \
src/common/linux/elfutils.cc \
src/common/linux/file_id.cc \
src/common/linux/linux_libc_support.cc \
src/common/linux/memory_mapped_file.cc \
src/common/linux/safe_readlink.cc \
src/tools/linux/dump_syms/dump_syms.cc
src_tools_linux_dump_syms_dump_syms_CXXFLAGS = \
$(RUST_DEMANGLE_CFLAGS)
src_tools_linux_dump_syms_dump_syms_LDADD = \
$(RUST_DEMANGLE_LIBS) \
$(SOCKET_LIBS)
endif

if !DISABLE_PROCESSOR
Expand Down
6 changes: 5 additions & 1 deletion configure.ac
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Expand Up @@ -73,7 +73,7 @@ AC_ARG_ENABLE(m32,
AC_HEADER_STDC
AC_SYS_LARGEFILE
AX_PTHREAD
AC_CHECK_HEADERS([a.out.h sys/random.h])
AC_CHECK_HEADERS([a.out.h mach-o/nlist.h sys/random.h])
AC_CHECK_FUNCS([arc4random getcontext getrandom])
AM_CONDITIONAL([HAVE_GETCONTEXT], [test "x$ac_cv_func_getcontext" = xyes])

Expand Down Expand Up @@ -115,6 +115,9 @@ case $host in
*-*-linux* | *-android* )
LINUX_HOST=true
;;
*-apple-* )
MACOS_HOST=true
;;
*-*-cygwin* )
WINDOWS_HOST=true
;;
Expand All @@ -125,6 +128,7 @@ case $host in
esac

AM_CONDITIONAL(LINUX_HOST, test x$LINUX_HOST = xtrue)
AM_CONDITIONAL(MACOS_HOST, test x$MACOS_HOST = xtrue)
# WINDOWS_HOST means MINGW or CYGWIN
AM_CONDITIONAL(WINDOWS_HOST, test x$WINDOWS_HOST = xtrue)
AM_CONDITIONAL(MINGW_HOST, test x$MINGW_HOST = xtrue)
Expand Down
6 changes: 4 additions & 2 deletions src/common/dwarf/elf_reader.cc
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Expand Up @@ -30,10 +30,13 @@
#define _GNU_SOURCE // needed for pread()
#endif

#include "compat/linux.h"
#include "compat/elf.h"
#include "compat/mman.h"

#include <fcntl.h>
#include <limits.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
Expand All @@ -46,7 +49,6 @@
// Also need to add configure tests for zlib.
//#include "zlib.h"

#include "third_party/musl/include/elf.h"
#include "elf_reader.h"
#include "common/using_std_string.h"

Expand Down
8 changes: 5 additions & 3 deletions src/common/linux/dump_symbols.cc
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Expand Up @@ -32,19 +32,21 @@
// dump_symbols.cc: implement google_breakpad::WriteSymbolFile:
// Find all the debugging info in a file and dump it as a Breakpad symbol file.

#include "compat/linux.h"
#include "compat/elf.h"
#include "compat/link.h"
#include "compat/mman.h"

#include "common/linux/dump_symbols.h"

#include <assert.h>
#include <elf.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <link.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <unistd.h>

Expand Down
2 changes: 1 addition & 1 deletion src/common/linux/elf_gnu_compat.h
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Expand Up @@ -36,7 +36,7 @@
#ifndef COMMON_LINUX_ELF_GNU_COMPAT_H_
#define COMMON_LINUX_ELF_GNU_COMPAT_H_

#include <elf.h>
#include "compat/elf.h"

// A note type on GNU systems corresponding to the .note.gnu.build-id section.
#ifndef NT_GNU_BUILD_ID
Expand Down
4 changes: 3 additions & 1 deletion src/common/linux/elf_symbols_to_module.cc
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Expand Up @@ -30,10 +30,12 @@

// Original author: Ted Mielczarek <ted.mielczarek@gmail.com>

#include "compat/linux.h"
#include "compat/elf.h"

#include "common/linux/elf_symbols_to_module.h"

#include <cxxabi.h>
#include <elf.h>
#include <string.h>

#include "common/byte_cursor.h"
Expand Down
5 changes: 3 additions & 2 deletions src/common/linux/elfutils.h
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Expand Up @@ -33,8 +33,9 @@
#ifndef COMMON_LINUX_ELFUTILS_H_
#define COMMON_LINUX_ELFUTILS_H_

#include <elf.h>
#include <link.h>
#include "compat/elf.h"
#include "compat/link.h"

#include <stdint.h>

#include "common/memory_allocator.h"
Expand Down
3 changes: 2 additions & 1 deletion src/common/linux/file_id.cc
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Expand Up @@ -32,9 +32,10 @@
// See file_id.h for documentation
//

#include "compat/inet.h"

#include "common/linux/file_id.h"

#include <arpa/inet.h>
#include <assert.h>
#include <string.h>

Expand Down
14 changes: 7 additions & 7 deletions src/common/linux/guid_creator.cc
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Expand Up @@ -92,12 +92,12 @@ class GUIDGenerator {
#endif

// Put in the version according to RFC 4122.
guid->data3 &= 0x0fff;
guid->data3 |= 0x4000;
guid->COMPAT_GUID_DATA3 &= 0x0fff;
guid->COMPAT_GUID_DATA3 |= 0x4000;

// Put in the variant according to RFC 4122.
guid->data4[0] &= 0x3f;
guid->data4[0] |= 0x80;
guid->COMPAT_GUID_DATA4[0] &= 0x3f;
guid->COMPAT_GUID_DATA4[0] |= 0x80;

return true;
}
Expand Down Expand Up @@ -178,9 +178,9 @@ bool GUIDToString(const GUID *guid, char *buf, int buf_len) {
// Should allow more space the the max length of GUID.
assert(buf_len > kGUIDStringLength);
int num = snprintf(buf, buf_len, kGUIDFormatString,
guid->data1, guid->data2, guid->data3,
GUIDGenerator::BytesToUInt32(&(guid->data4[0])),
GUIDGenerator::BytesToUInt32(&(guid->data4[4])));
guid->COMPAT_GUID_DATA1, guid->COMPAT_GUID_DATA2, guid->COMPAT_GUID_DATA3,
GUIDGenerator::BytesToUInt32(&(guid->COMPAT_GUID_DATA4[0])),
GUIDGenerator::BytesToUInt32(&(guid->COMPAT_GUID_DATA4[4])));
if (num != kGUIDStringLength)
return false;

Expand Down
4 changes: 3 additions & 1 deletion src/common/linux/guid_creator.h
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Expand Up @@ -30,9 +30,11 @@
#ifndef COMMON_LINUX_GUID_CREATOR_H__
#define COMMON_LINUX_GUID_CREATOR_H__

// Set MDGUID.
#include "google_breakpad/common/minidump_format.h"

typedef MDGUID GUID;
// Use MDGUID.
#include "compat/guiddef.h"

// Format string for parsing GUID.
#define kGUIDFormatString "%08x-%04x-%04x-%08x-%08x"
Expand Down
5 changes: 4 additions & 1 deletion src/common/linux/memory_mapped_file.cc
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Expand Up @@ -30,10 +30,13 @@
// memory_mapped_file.cc: Implement google_breakpad::MemoryMappedFile.
// See memory_mapped_file.h for details.

#include "compat/linux.h"
#include "compat/mman.h"
#include "compat/syscall.h"

#include "common/linux/memory_mapped_file.h"

#include <fcntl.h>
#include <sys/mman.h>
#if defined(__ANDROID__)
#include <sys/stat.h>
#endif
Expand Down
5 changes: 3 additions & 2 deletions src/common/linux/safe_readlink.cc
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Expand Up @@ -30,9 +30,10 @@
// safe_readlink.cc: Implement google_breakpad::SafeReadLink.
// See safe_readlink.h for details.

#include <stddef.h>
#include "compat/linux.h"
#include "compat/syscall.h"

#include "third_party/lss/linux_syscall_support.h"
#include <stddef.h>

namespace google_breakpad {

Expand Down
13 changes: 4 additions & 9 deletions src/common/memory_allocator.h
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Expand Up @@ -30,10 +30,13 @@
#ifndef GOOGLE_BREAKPAD_COMMON_MEMORY_ALLOCATOR_H_
#define GOOGLE_BREAKPAD_COMMON_MEMORY_ALLOCATOR_H_

#include "compat/linux.h"
#include "compat/mman.h"
#include "compat/syscall.h"

#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/mman.h>

#include <memory>
#include <vector>
Expand All @@ -42,14 +45,6 @@
#include <sanitizer/msan_interface.h>
#endif

#ifdef __APPLE__
#define sys_mmap mmap
#define sys_munmap munmap
#define MAP_ANONYMOUS MAP_ANON
#else
#include "third_party/lss/linux_syscall_support.h"
#endif

namespace google_breakpad {

// This is very simple allocator which fetches pages from the kernel directly.
Expand Down
2 changes: 2 additions & 0 deletions src/common/stabs_reader.cc
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Expand Up @@ -31,6 +31,8 @@
// This file implements the google_breakpad::StabsReader class.
// See stabs_reader.h.

#include "compat/linux.h"

#include "common/stabs_reader.h"

#include <assert.h>
Expand Down
10 changes: 10 additions & 0 deletions src/compat/elf.h
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@@ -0,0 +1,10 @@
#ifndef SRC_COMPAT_ELF_H_
#define SRC_COMPAT_ELF_H_

#if !defined(_WIN32) && !defined(__APPLE__)
#include <elf.h>
#else
#include "third_party/musl/include/elf.h"
#endif

#endif // SRC_COMPAT_ELF_H_
22 changes: 22 additions & 0 deletions src/compat/guiddef.h
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@@ -0,0 +1,22 @@
#ifndef SRC_COMPAT_GUIDDEF_H_
#define SRC_COMPAT_GUIDDEF_H_

#if defined(_WIN32)
#include <guiddef.h>
#else
typedef MDGUID GUID;
#endif

#if defined(_WIN32)
#define COMPAT_GUID_DATA1 Data1
#define COMPAT_GUID_DATA2 Data2
#define COMPAT_GUID_DATA3 Data3
#define COMPAT_GUID_DATA4 Data4
#else
#define COMPAT_GUID_DATA1 data1
#define COMPAT_GUID_DATA2 data2
#define COMPAT_GUID_DATA3 data3
#define COMPAT_GUID_DATA4 data4
#endif

#endif // SRC_COMPAT_GUIDDEF_H_
10 changes: 10 additions & 0 deletions src/compat/inet.h
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#ifndef SRC_COMPAT_INET_H_
#define SRC_COMPAT_INET_H_

#if defined(_WIN32)
#include <winsock2.h>
#else
#include <arpa/inet.h>
#endif

#endif // SRC_COMPAT_INET_H_
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