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// environment variables:
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// environment variables:
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//   DEBUG_LINKER_DRIVER - when defined to any value (incl. empty string), print the constructed command line to stderr before calling the linker.
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//   DEBUG_LINKER_DRIVER - when defined to any value (incl. empty string), print the constructed command line to stderr before calling the linker.
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#include <stdio.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdarg.h>
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#include <stdarg.h>
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#include <stdbool.h>
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#include <stdbool.h>
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#include <string.h>
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#include <string.h>
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#include <fcntl.h>
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#include <fcntl.h>
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#ifndef _WIN32
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#ifndef _WIN32
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#define ARGMODE_SINGLE   0
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#define ARGMODE_SINGLE   0
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#define ARGMODE_HASVAL   1
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#define ARGMODE_HASVAL   1
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#define ARGMODE_EQUALVAL 2
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#define ARGMODE_EQUALVAL 2
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// handy macros that generate a version number in the format "YYYYMMDD" corresponding to the build date. Usage: printf ("version " VERSION_FMT_YYYYMMDD "\n", VERSION_ARG_YYYYMMDD);
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#ifndef VERSION_ARG_YYYYMMDD
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#define BUILDDATE_YEAR  (&__DATE__[7]) // compiler will optimize this into a const string, e.g. "2021"
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#define BUILDDATE_MONTH ( \
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   *((uint32_t *) __DATE__) == *((uint32_t *) "Jan ") ? "01" : \
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   *((uint32_t *) __DATE__) == *((uint32_t *) "Feb ") ? "02" : \
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   *((uint32_t *) __DATE__) == *((uint32_t *) "Mar ") ? "03" : \
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   *((uint32_t *) __DATE__) == *((uint32_t *) "Apr ") ? "04" : \
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   *((uint32_t *) __DATE__) == *((uint32_t *) "May ") ? "05" : \
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   *((uint32_t *) __DATE__) == *((uint32_t *) "Jun ") ? "06" : \
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   *((uint32_t *) __DATE__) == *((uint32_t *) "Jul ") ? "07" : \
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   *((uint32_t *) __DATE__) == *((uint32_t *) "Aug ") ? "08" : \
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   *((uint32_t *) __DATE__) == *((uint32_t *) "Sep ") ? "09" : \
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   *((uint32_t *) __DATE__) == *((uint32_t *) "Oct ") ? "10" : \
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   *((uint32_t *) __DATE__) == *((uint32_t *) "Nov ") ? "11" : \
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   *((uint32_t *) __DATE__) == *((uint32_t *) "Dec ") ? "12" : \
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   "XX" \
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) // compiler will optimize this into a const string, e.g. "11"
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#define BUILDDATE_DAY ( \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) "  1 ") ? "01" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) "  2 ") ? "02" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) "  3 ") ? "03" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) "  4 ") ? "04" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) "  5 ") ? "05" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) "  6 ") ? "06" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) "  7 ") ? "07" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) "  8 ") ? "08" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) "  9 ") ? "09" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 10 ") ? "10" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 11 ") ? "11" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 12 ") ? "12" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 13 ") ? "13" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 14 ") ? "14" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 15 ") ? "15" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 16 ") ? "16" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 17 ") ? "17" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 18 ") ? "18" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 19 ") ? "19" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 20 ") ? "20" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 21 ") ? "21" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 22 ") ? "22" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 23 ") ? "23" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 24 ") ? "24" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 25 ") ? "25" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 26 ") ? "26" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 27 ") ? "27" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 28 ") ? "28" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 29 ") ? "29" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 30 ") ? "30" : \
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   *((uint32_t *) &__DATE__[3]) == *((uint32_t *) " 31 ") ? "31" : \
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   "XX" \
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) // compiler will optimize this into a const string, e.g. "14"
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#define VERSION_FMT_YYYYMMDD "%s%s%s"
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#define VERSION_ARG_YYYYMMDD BUILDDATE_YEAR, BUILDDATE_MONTH, BUILDDATE_DAY
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#endif // !VERSION_ARG_YYYYMMDD
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char *array_contains (int argc, char **argv, char *needle, int mode)
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char *array_contains (int argc, char **argv, char *needle, int mode)
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{
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{
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   char *arg;
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   char *arg;
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   bool was_cpluspluslib_included = false;
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   bool was_cpluspluslib_included = false;
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   bool requires_libcplusplus = false;
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   bool requires_libcplusplus = false;
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   int arg_index;
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   int arg_index;
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   char *arg;
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   char *arg;
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   FILE *fp;
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   FILE *fp;
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   // special case: print the driver version and exit
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   if ((argc == 2) && (strcmp (argv[1], "--driver-version") == 0))
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   {
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      printf ("clang 'gcc' linker driver for QNX 8.0 version " VERSION_FMT_YYYYMMDD " by Pierre-Marie Baty <pm@pmbaty.com>\n", VERSION_ARG_YYYYMMDD);
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      return (0);
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   }
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   // if *any* of these flags are present, it means we don't want to link anything, so direct everything to the compiler
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   // if *any* of these flags are present, it means we don't want to link anything, so direct everything to the compiler
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   if (   ARGV_CONTAINS_SINGLEARG ("-fsyntax-only")
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   if (   ARGV_CONTAINS_SINGLEARG ("-fsyntax-only")
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       || ARGV_CONTAINS_SINGLEARG ("-c")
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       || ARGV_CONTAINS_SINGLEARG ("-c")
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       || ARGV_CONTAINS_SINGLEARG ("-M")
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       || ARGV_CONTAINS_SINGLEARG ("-M")