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/******************************************************************************
* Copyright (c) 2000-2020 Ericsson Telecom AB
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.html
*
* Contributors:
* Balasko, Jeno
* Beres, Szabolcs
* Raduly, Csaba
*
******************************************************************************/
/* Write a header that checks the expected version of the compiler.
* gccversion.c is a bit of a misnomer (also handles the Sun compiler),
* but it's shorter than compiler_version.c */
#include <stdio.h>
#if defined(__GNUC__)
/* clang defines __GNUC__ but also has its own version numbers */
#ifdef __clang__
static unsigned int compiler_major = __clang_major__;
static unsigned int compiler_minor = __clang_minor__;
static unsigned int compiler_patchlevel = __clang_patchlevel__;
#define COMPILER_NAME_STRING "clang"
#else
#define COMPILER_NAME_STRING "GCC"
static unsigned int compiler_major = __GNUC__;
static unsigned int compiler_minor = __GNUC_MINOR__;
# ifdef __GNUC_PATCHLEVEL__
static unsigned int compiler_patchlevel = __GNUC_PATCHLEVEL__;
# else
static unsigned int compiler_patchlevel = 0; /* GCC below 3.0 */
# endif
#endif /* __clang__ */
#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
/* Just in case it's compiled with the C++ compiler */
# if !defined(__SUNPRO_C)
# define __SUNPRO_C __SUNPRO_CC
# endif
static unsigned int compiler_major = (__SUNPRO_C & 0xF00) >> 8;
static unsigned int compiler_minor = (__SUNPRO_C & 0x0F0) >> 4;
static unsigned int compiler_patchlevel = (__SUNPRO_C & 0x00F);
#else
/* unknown compiler */
static unsigned int compiler_major = 0;
static unsigned int compiler_minor = 0;
static unsigned int compiler_patchlevel = 0;
#endif
int main(void)
{
puts(
"/* Check if the compiler matches the one used to build the runtime */\n"
"#ifndef MAKEDEPEND_RUN\n\n");
/* Do not check compiler version when makedepend is being run.
* Old Solaris makedepend cannot compute GCC_VERSION. */
#if defined(__GNUC__)
printf("\n"
#ifdef __clang__
"#if CLANG_VERSION != %d\n"
#else
"#if GCC_VERSION != %d\n"
#endif
"#%s The version of " COMPILER_NAME_STRING " does not match the expected version (" COMPILER_NAME_STRING " %d.%d.%d).%s\n"
"#endif\n", compiler_major * 10000 + compiler_minor * 100,
/* Note that we don't use compiler_patchlevel when checking.
* This assumes that code is portable between GCC a.b.x and a.b.y */
compiler_major < 5 ? "error" : "warning", compiler_major, compiler_minor, compiler_patchlevel,
compiler_major < 5 ? "" : " In case of ABI changes between the expected and current compiler version, "
"this may lead to difficult-to-predict issues during execution.");
#elif defined(__SUNPRO_C)
printf("\n"
"#if __SUNPRO_CC != 0x%X\n"
"#error The version of the Sun compiler does not match the expected version.\n"
"#endif\n",
compiler_major * 0x100 + compiler_minor * 0x10 + compiler_patchlevel);
#endif
puts("\n#endif\n");
return 0;
}
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