configure

   1 #! /bin/sh
   2 #
   3 # Copyright (C) 2008 by Mike Sharov <msharov@users.sourceforge.net>
   4 # This file is free software, distributed under the MIT License.
   5 #
   6 ######################################################################
   7 #### Project Configuration ###########################################
   8 ######################################################################
   9
  10 PKG_NAME="ustl"
  11 PKG_MAJOR="1"
  12 PKG_MINOR="2"
  13
  14 FILES="Config.mk config.h"
  15
  16 PKG_BUGREPORT="Mike Sharov <msharov@users.sourceforge.net>"
  17
  18 # Package options
  19 COMPONENTS="
  20 {
  21 name=[without-shared]
  22 desc=[Builds the shared library (if supported by the OS)]
  23 seds=[s/BUILD_SHARED\t:= 1/#BUILD_SHARED\t:= 1/]
  24 }{
  25 name=[with-static]
  26 desc=[  Builds the static library]
  27 seds=[s/#BUILD_STATIC\t:= 1/BUILD_STATIC\t:= 1/]
  28 }{
  29 name=[with-debug]
  30 desc=[  Compiles the library with debugging information]
  31 seds=[s/#DEBUG\t\t:= 1/DEBUG\t\t:= 1/]
  32 }{
  33 name=[without-bounds]
  34 desc=[Disable runtime bounds checking on stream reads/writes]
  35 seds=[s/#define WANT_STREAM_BOUNDS_CHECKING 1/#undef WANT_STREAM_BOUNDS_CHECKING/]
  36 }{
  37 name=[without-fastcopy]
  38 desc=[Disable specializations for copy/fill]
  39 seds=[s/#define WANT_UNROLLED_COPY 1/#undef WANT_UNROLLED_COPY/]
  40 }{
  41 name=[without-mmx]
  42 desc=[  Disable use of MMX/SSE/3dNow! instructions]
  43 seds=[s/#define WANT_MMX 1/#undef WANT_MMX/]
  44 }{
  45 name=[with-libstdc++]
  46 desc=[Link with libstdc++]
  47 seds=[s/#define WITHOUT_LIBSTDCPP 1/#undef WITHOUT_LIBSTDCPP/\n
  48 s/#NOLIBSTDCPP\t=/NOLIBSTDCPP\t=/]
  49 }";
  50
  51 # Header files
  52 HEADERS="assert.h ctype.h errno.h fcntl.h float.h inttypes.h limits.h locale.h
  53 malloc.h alloca.h memory.h signal.h stdarg.h stddef.h stdint.h stdio.h
  54 stdlib.h string.h strings.h sys/stat.h sys/types.h sys/wait.h time.h
  55 unistd.h math.h stdlib.h";
  56
  57 # Libraries
  58 LIBS="supc++ gcc_eh SystemStubs"
  59
  60 # First pair is used if nothing matches
  61 PROGS="CC=gcc CC=cc CXX=g++ CXX=c++ DOXYGEN=doxygen
  62 LD=ld AR=ar RANLIB=ranlib RANLIB=touch INSTALL=install"
  63
  64 # Environment variables
  65 ENVIRONS="CXXFLAGS LDFLAGS"
  66
  67 # Automatic vars
  68 PKG_VERSTR="$PKG_MAJOR.$PKG_MINOR"
  69 PKG_STRING="$PKG_NAME $PKG_VERSTR"
  70
  71 # Miscellaneous substitutions
  72 CUSTSUBS="s/@PACKAGE_NAME@/$PKG_NAME/g
  73 s/@PACKAGE_VERSION@/$PKG_VERSTR/g
  74 s/@PACKAGE_TARNAME@/$PKG_NAME/g
  75 s/@PACKAGE_STRING@/$PKG_STRING/g
  76 s/@PACKAGE_BUGREPORT@/$PKG_BUGREPORT/g
  77 s/@LIBNAME@/$PKG_NAME/g
  78 s/@LIB_MAJOR@/$PKG_MAJOR/g
  79 s/@LIB_MINOR@/$PKG_MINOR/g
  80 s/@LIB_BUILD@/0/g"
  81
  82 ######################################################################
  83 #### The rest of the file is configuration code. Leave it alone. #####
  84 ######################################################################
  85
  86 die() { rm -f config.sed config.cpu config.cpu.c; exit; }
  87
  88 #### Compile the configurator and generate initial config.sed ########
  89
  90 if [ -z "$CC" ]; then
  91     for i in gcc g++ cc c++ c89 c99; do
  92         CC=`which $i 2> /dev/null` && break
  93     done
  94 fi
  95 [ -z "$CC" ] && "No C compiler found" && die
  96
  97 # Determine gcc private directory
  98 PSTDDEF=`echo "#include <stddef.h>"|$CC -E -|grep stddef.h|head -n1|cut -d' ' -f3|cut -d'"' -f2`
  99 PINCDIR=`dirname $PSTDDEF`
 100 PLIBDIR=`dirname $PINCDIR`
 101 if [ -d $PLIBDIR/lib ]; then PLIBDIR=$PLIBDIR/lib; fi
 102
 103 # Create and build the C configurator
 104 echo '#include <stdio.h>
 105 #include <sys/types.h>
 106 #include <sys/param.h>
 107
 108 #if defined(__GNUC__) && (__i386__ || __x86_64) && !defined(__PIC__)
 109 static uint cpuid_supported (void)
 110 {
 111     unsigned long forig, fnew;
 112     asm ("pushf\n\tpop\t%0\n\t"
 113         "mov\t%0, %1\n\txor\t$0x200000, %0\n\t"
 114         "push\t%0\n\tpopf\n\tpushf\n\tpop\t%0"
 115         : "=r"(fnew), "=r"(forig));
 116     return (fnew != forig);
 117 }
 118
 119 static uint cpuid (void)
 120 {
 121     #define i_cpuid(a,r,c,d)    asm("cpuid":"=a"(r),"=c"(c),"=d"(d):"0"(a):"ebx")
 122     const uint amdBits = 0xC9480000, extFeatures = 0x80000000, amdExtensions = 0x80000001;
 123     uint r, c, d, caps;
 124     if (!cpuid_supported()) return (0);
 125     i_cpuid (0, r, c, d);
 126     if (!r) return (0);
 127     i_cpuid (1, r, c, d);
 128     caps = (d & ~amdBits);
 129     i_cpuid (extFeatures, r, c, d);
 130     if (r != extFeatures) {
 131         i_cpuid (amdExtensions, r, c, d);
 132         caps |= d & amdBits;
 133     }
 134     return (caps);
 135 }
 136 #else
 137 static uint cpuid (void) { return (0); }
 138 #endif
 139
 140 int main (void)
 141 {
 142     typedef struct {
 143         char    m_Bit;
 144         char    m_Sub [11];
 145     } SCpuCaps;
 146     static const short int boCheck = 0x0001;
 147     static const char boNames[2][16] = { "BIG", "LITTLE" };
 148     static const SCpuCaps s_CpuCaps [] = {
 149         {  0, "FPU"             },
 150         {  2, "EXT_DEBUG"       },
 151         {  4, "TIMESTAMPC"      },
 152         {  5, "MSR"             },
 153         {  8, "CMPXCHG8"        },
 154         {  9, "APIC"            },
 155         { 11, "SYSCALL"         },
 156         { 12, "MTRR"            },
 157         { 15, "CMOV"            },
 158         { 16, "FCMOV"           },
 159         { 22, "SSE "            },
 160         { 23, "MMX"             },
 161         { 24, "FXSAVE"          },
 162         { 25, "SSE "            },
 163         { 26, "SSE2"            },
 164         { 30, "EXT_3DNOW"       },
 165         { 31, "3DNOW"           }
 166     };
 167     uint i, caps;
 168
 169 #if __GNUC__ >= 3
 170     printf ("s/@INLINE_OPTS@/");
 171     #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
 172         printf ("--param max-inline-insns-single=1024"
 173                 " \\\\\\n\\t\\t--param large-function-growth=65535"
 174                 " \\\\\\n\\t\\t--param inline-unit-growth=1024");
 175     #else
 176         printf ("-finline-limit=65535");
 177     #endif
 178     #if __GNUC__ >= 4
 179         printf (" \\\\\\n\\t\\t-fvisibility-inlines-hidden"
 180                 " \\\\\\n\\t\\t-fno-threadsafe-statics -fno-enforce-eh-specs");
 181     #endif
 182     printf ("/g\n");
 183 #else
 184     printf ("s/ \\?@INLINE_OPTS@//g\n"
 185         "s/-Wredundant-decls/-Wno-redundant-decls/g\n");
 186 #endif
 187 #if __GNUC__ != 3
 188     printf ("s/ \\?@libgcc_eh@//g\n");
 189 #endif
 190 #if __i386__
 191     printf ("s/ \\?-fPIC//g\n");
 192 #endif
 193 #if defined(__GNUC__) || defined(__GLIBC_HAVE_LONG_LONG)
 194     printf ("s/#undef HAVE_LONG_LONG/#define HAVE_LONG_LONG 1/g\n"
 195         "s/#undef SIZE_OF_LONG_LONG/#define SIZE_OF_LONG_LONG %zd/g\n", sizeof(long long));
 196 #endif
 197 #if defined(__GNUC__) || (__WORDSIZE == 64) || defined(__ia64__)
 198 #ifndef BSD
 199     printf ("s/#undef HAVE_INT64_T/#define HAVE_INT64_T 1/g\n");
 200 #endif
 201 #endif
 202 #ifndef __APPLE__
 203     if (sizeof(size_t) == sizeof(unsigned long) && sizeof(size_t) != sizeof(uint))
 204 #endif
 205         printf ("s/#undef SIZE_T_IS_LONG/#define SIZE_T_IS_LONG 1/g\n");
 206 #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
 207     printf ("s/#undef HAVE_VECTOR_EXTENSIONS/#define HAVE_VECTOR_EXTENSIONS 1/g\n");
 208 #else
 209     printf ("s/ \\?-Wshadow//g\n");
 210 #endif
 211     printf ("s/@BYTE_ORDER@/%s_ENDIAN/g\n"
 212         "s/#undef RETSIGTYPE/#define RETSIGTYPE void/g\n"
 213         "s/#undef const/\\/\\* #define const \\*\\//g\n"
 214         "s/#undef inline/\\/\\* #define inline __inline \\*\\//g\n"
 215         "s/#undef off_t/\\/\\* typedef long off_t; \\*\\//g\n"
 216         "s/#undef size_t/\\/\\* typedef long size_t; \\*\\//g\n"
 217         "s/#undef SIZE_OF_CHAR/#define SIZE_OF_CHAR %zd/g\n"
 218         "s/#undef SIZE_OF_SHORT/#define SIZE_OF_SHORT %zd/g\n"
 219         "s/#undef SIZE_OF_INT/#define SIZE_OF_INT %zd/g\n"
 220         "s/#undef SIZE_OF_LONG/#define SIZE_OF_LONG %zd/g\n"
 221         "s/#undef SIZE_OF_POINTER/#define SIZE_OF_POINTER %zd/g\n"
 222         "s/#undef SIZE_OF_SIZE_T/#define SIZE_OF_SIZE_T %zd/g\n"
 223         "s/#undef LSTAT_FOLLOWS_SLASHED_SYMLINK/#define LSTAT_FOLLOWS_SLASHED_SYMLINK 1/g\n"
 224         "s/#undef HAVE_STAT_EMPTY_STRING_BUG/\\/* #undef HAVE_STAT_EMPTY_STRING_BUG *\\//g\n",
 225         boNames [(uint)(*((const char*)&boCheck))], sizeof(char),
 226         sizeof(short), sizeof(int), sizeof(long), sizeof(void*), sizeof(size_t));
 227
 228     caps = cpuid();
 229     for (i = 0; i < sizeof(s_CpuCaps)/sizeof(SCpuCaps); ++i)
 230         if (caps & (1 << s_CpuCaps[i].m_Bit))
 231             printf ("s/#undef CPU_HAS_%s/#define CPU_HAS_%s 1/g\n", s_CpuCaps[i].m_Sub, s_CpuCaps[i].m_Sub);
 232 #if __GNUC__ >= 3
 233     printf ("s/ \\?@PROCESSOR_OPTS@/");
 234     if (caps & (1 << 23))
 235         printf (" -mmmx");
 236     if (caps & ((1 << 22) | (1 << 25)))
 237         printf (" -msse -mfpmath=sse");
 238     if (caps & (1 << 26))
 239         printf (" -msse2");
 240     if (caps & ((1 << 30) | (1 << 31)))
 241         printf (" -m3dnow");
 242     printf ("/g\n");
 243 #else
 244     printf ("s/ \\?@PROCESSOR_OPTS@//g\n");
 245 #endif
 246     return (0);
 247 }' >config.cpu.c
 248 $CC -o config.cpu config.cpu.c
 249 [ ! -x config.cpu ] && echo "Configurator build failed" && die
 250 ./config.cpu > config.sed
 251
 252 #### Set host-dependent options ######################################
 253
 254 SYSNAME=`uname|tr "[A-Z]" "[a-z]"`
 255 [ "`uname -m|tr '[A-Z]' '[a-z]'`" = "alpha" ] && SYSNAME="alpha"
 256 case "$SYSNAME" in
 257     *solaris*| *sun*)   SYSNAME="sun";;
 258     *darwin*| *osx*)    SYSNAME="mac";;
 259     *alpha*)            SYSNAME="alpha";;
 260     *bsd*)              SYSNAME="bsd";;
 261     *)                  SYSNAME="linux";;
 262 esac
 263
 264 if [ "$SYSNAME" = "sun" ]; then
 265     echo "s/-Wredundant-decls/-Wno-redundant-decls/g
 266         s/@SHBLDFL@/-G/g" >>config.sed
 267 else
 268     echo "s/#undef HAVE_THREE_CHAR_TYPES/#define HAVE_THREE_CHAR_TYPES 1/g" >>config.sed
 269 fi
 270 if [ "$SYSNAME" = "bsd" ]; then
 271     echo "s/ \\?@libgcc_eh@//g
 272         s/#define WITHOUT_LIBSTDCPP 1/#undef WITHOUT_LIBSTDCPP/g
 273         s/NOLIBSTDCPP\\t= -nodefaultlibs /#NOLIBSTDCPP\\t= -nodefaultlibs/g
 274         s/-Wredundant-decls/-Wno-redundant-decls/g
 275         s/-Winline/-Wno-inline/g
 276         s/#define HAVE_VA_COPY 1/#undef HAVE_VA_COPY/g" >>config.sed
 277 fi
 278 if [ "$SYSNAME" = "linux" -o "$SYSNAME" = "bsd" ]; then
 279     echo "s/@SHBLDFL@/-shared -Wl,-soname=\$1/g" >>config.sed
 280 elif [ "$SYSNAME" = "alpha" ]; then
 281     echo "s/BUILD_SHARED\\t= 1 /#BUILD_SHARED\\t= 1/g
 282         s/#BUILD_STATIC\\t= 1/BUILD_STATIC\\t= 1 /g" >>config.sed
 283 fi
 284 if [ "$SYSNAME" = "mac" ]; then
 285     echo "s/ \\?@libgcc_eh@//g
 286         s/@SYSWARNS@/-Wno-long-double/g
 287         s/lib\$1.so/lib\$1.dylib/g
 288         s/lib\$1.so.\$\{MAJOR\}.\$\{MINOR\}.\$\{BUILD\}/lib\$1.\$\{MAJOR\}.\$\{MINOR\}.\$\{BUILD\}.dylib/g
 289         s/lib\$1.so.\$\{MAJOR\}.\$\{MINOR\}/lib\$1.\$\{MAJOR\}.\$\{MINOR\}.dylib/g
 290         s/lib\$1.so.\$\{MAJOR\}/lib\$1.\$\{MAJOR\}.dylib/g
 291         s/@SHBLDFL@/-Wl,-single_module -compatibility_version 1 -current_version 1 -install_name \$1 -Wl,-Y,1455 -dynamiclib -mmacosx-version-min=10.4/g" >>config.sed
 292 else
 293     echo "s/ \\?@SYSWARNS@//g" >>config.sed
 294 fi
 295 if [ "$SYSNAME" = "alpha" -o "$SYSNAME" = "mac" ]; then
 296     echo "s/#undef SIZE_OF_BOOL/#define SIZE_OF_BOOL SIZE_OF_LONG/g" >>config.sed
 297 else
 298     echo "s/#undef SIZE_OF_BOOL/#define SIZE_OF_BOOL SIZE_OF_CHAR/g" >>config.sed
 299 fi
 300 if [ "$SYSNAME" = "linux" ]; then
 301     echo "s/#undef HAVE_RINTF/#define HAVE_RINTF 1/g" >>config.sed
 302 else
 303     echo "s/ \\?-mfpmath=sse//g" >>config.sed
 304 fi
 305 if [ "$SYSNAME" = "mac" -o "$SYSNAME" = "bsd" ]; then
 306     echo "s/#define HAVE_STRSIGNAL 1/#undef HAVE_STRSIGNAL/g" >>config.sed
 307 fi
 308
 309 #### Printing helper functions #######################################
 310
 311 PrintComponents() {
 312     local cc=$COMPONENTS
 313     echo "Options:"
 314     while [ ! -z "$cc" ]; do
 315         local name=`expr "$cc" : '[^}]*name=\[\([^]]*\)\]'`
 316         local desc=`expr "$cc" : '[^}]*desc=\[\([^]]*\)\]'`
 317         echo "  --$name $desc"
 318         cc=`expr "$cc" : '[^}]*}\(.*\)'`
 319     done
 320     echo
 321 }
 322
 323 PrintHelp() {
 324     echo "This program configures $PKG_STRING to adapt to many kinds of systems.
 325
 326 Usage: configure [OPTION]...
 327
 328 Configuration:
 329   -h, --help            display this help and exit
 330   -V, --version         display version information and exit
 331
 332 Installation directories:
 333   --prefix=PREFIX       architecture-independent files [/usr/local]
 334   --exec-prefix=EPREFIX architecture-dependent files [PREFIX]
 335   --bindir=DIR          user executables [EPREFIX/bin]
 336   --sbindir=DIR         system admin executables [EPREFIX/sbin]
 337   --libexecdir=DIR      program executables [EPREFIX/libexec]
 338   --datadir=DIR         read-only architecture-independent data [PREFIX/share]
 339   --sysconfdir=DIR      read-only single-machine data [PREFIX/etc]
 340   --sharedstatedir=DIR  modifiable architecture-independent data [PREFIX/com]
 341   --localstatedir=DIR   modifiable single-machine data [PREFIX/var]
 342   --libdir=DIR          object code libraries [EPREFIX/lib]
 343   --includedir=DIR      C header files [PREFIX/include]
 344   --oldincludedir=DIR   C header files for non-gcc [/usr/include]
 345   --gccincludedir=DIR   GCC internal header files [PREFIX/include]
 346   --infodir=DIR         info documentation [PREFIX/info]
 347   --mandir=DIR          man documentation [PREFIX/man]
 348
 349 System types:
 350   --build=BUILD         configure for building on BUILD [guessed]
 351   --host=HOST           cross-compile to build programs to run on HOST [BUILD]
 352 "
 353     PrintComponents
 354     echo "Report bugs to $PKG_BUGREPORT."
 355 }
 356
 357 PrintVersion() {
 358     echo "$PKG_NAME configure $PKG_VERSTR
 359
 360 Copyright (c) 2003-2008, Mike Sharov <msharov@users.sourceforge.net>
 361 This configure script is free software under the MIT license.
 362 Unlimited permission to copy, distribute, and modify is granted."
 363 }
 364
 365 SubVar() {
 366     local esc2=`echo $2 | sed 's/\//\\\&/g'`
 367     eval ac_var_$1='$esc2';
 368     echo "s/@$1@/$esc2/g" >>config.sed
 369 }
 370
 371 SubComp() {
 372     local cc=$COMPONENTS
 373     while [ ! -z "$cc" ]; do
 374         local name=`expr "$cc" : '[^}]*name=\[\([^]]*\)\]'`
 375         local seds=`expr "$cc" : '[^}]*seds=\[\([^]]*\)\]'`
 376         [ "$name" = "$1" ] && echo -e $seds >>config.sed
 377         cc=`expr "$cc" : '[^}]*}\(.*\)'`
 378     done
 379 }
 380
 381 for i in $*; do
 382     case $i in
 383         --)             break;;
 384         --version |-V)  PrintVersion && die;;
 385         --help |-h |-?) PrintHelp && die;;
 386         --*=*)          SubVar `expr "$i" : '--\([^=]*\)='` `expr "$i" : '[^=]*=\(.*\)'`;;
 387         --*)            SubComp `expr "$i" : '--\(.*\)'`;;
 388         *)              echo "Error: unrecognized option \"$i\"" && die;;
 389     esac
 390 done
 391
 392 #### Set directory prefixes ##########################################
 393
 394 echo "s/@prefix@/${ac_var_prefix:=\/usr\/local}/g
 395 s/@exec_prefix@/${ac_var_exec_prefix:=$ac_var_prefix}/g
 396 s/@bindir@/$ac_var_exec_prefix\/bin/g
 397 s/@sbindir@/$ac_var_exec_prefix\/sbin/g
 398 s/@libexecdir@/$ac_var_exec_prefix\/libexec/g
 399 s/@datarootdir@/${ac_var_datarootdir:=$ac_var_prefix\/share}/g
 400 s/@datadir@/$ac_var_datarootdir/g
 401 s/@sysconfdir@/$ac_var_prefix\/etc/g
 402 s/@sharedstatedir@/$ac_var_prefix\/com/g
 403 s/@localstatedir@/$ac_var_prefix\/var/g
 404 s/@includedir@/${ac_var_includedir:=$ac_var_prefix\/include}/g
 405 s/@oldincludedir@/${ac_var_oldincludedir:=\/usr\/include}/g
 406 s/@docdir@/${ac_var_docdir:=$ac_var_datarootdir\/doc\/$PKG_NAME}/g
 407 s/@infodir@/$ac_var_datarootdir\/info/g
 408 s/@htmldir@/$ac_var_docdir/g
 409 s/@dvidir@/$ac_var_docdir/g
 410 s/@pdfdir@/$ac_var_docdir/g
 411 s/@psdir@/$ac_var_docdir/g
 412 s/@libdir@/${ac_var_libdir:=$ac_var_exec_prefix\/lib}/g
 413 s/@localedir@/$ac_var_datarootdir\/locale/g
 414 s/@mandir@/$ac_var_datarootdir\/man/g
 415 s/@gccincludedir@/${ac_var_gccincludedir:=`echo $PINCDIR | sed 's/\//\\\&/g'`}/g
 416 s/@gcclibdir@/${ac_var_gcclibdir:=`echo $PLIBDIR | sed 's/\//\\\&/g'`}/g
 417 s/@customincdir@/${ac_var_customincdir:=$ac_var_prefix\/include}/g
 418 s/@customlibdir@/${ac_var_customlibdir:=$ac_var_prefix\/lib}/g" >>config.sed
 419
 420 if [ "$ac_var_prefix" != "\/usr\/local" -a "$ac_var_prefix" != "\/usr" ]; then
 421     echo "s/ \?@CUSTOMINCDIR@/ -I$ac_var_customincdir/g
 422 s/ \?@CUSTOMLIBDIR@/ -L$ac_var_customlibdir/g" >>config.sed
 423 else
 424     echo "s/ \?@CUSTOMINCDIR@//g
 425 s/ \?@CUSTOMLIBDIR@//g" >>config.sed
 426 fi
 427
 428 #### Find headers, libs, programs, and subs ##########################
 429
 430 SubHeadLibsProgs() {
 431 local INCPATH="$ac_var_oldincludedir $ac_var_includedir $ac_var_gccincludedir $ac_var_customincdir"
 432 INCPATH=`echo $INCPATH | sed 's/\\\\//g'`
 433 for i in $HEADERS; do
 434     for p in $INCPATH; do
 435         if [ -r "$p/$i" ]; then
 436             local hmacn=`echo $i | tr "a-z/.-" "A-Z___"`
 437             echo "s/#undef HAVE_$hmacn/#define HAVE_$hmacn 1/" >>config.sed
 438             break
 439         fi
 440     done
 441 done
 442
 443 local LIBPATH="`echo $LD_LIBRARY_PATH | tr ':' ' '` $ac_var_libdir $ac_var_gcclibdir $ac_var_customlibdir /usr/lib /usr/local/lib /lib"
 444 LIBPATH=`echo $LIBPATH | sed 's/\\\\//g'`
 445 local LIBSUFFIX="so a la dylib"
 446 for i in $LIBS; do
 447     local found=
 448     for p in $LIBPATH; do
 449         for s in $LIBSUFFIX; do
 450             if [ -r "$p/lib$i.$s" ]; then
 451                 found=" -l$i"
 452                 break
 453             fi
 454         done
 455         [ -z "$found" ] || break
 456     done
 457     echo "s/ \?@lib$i@/$found/g" >>config.sed
 458 done
 459
 460 for i in $PROGS; do
 461     local pname=`expr "$i" : '\([^=]*\)=[^=]*'`
 462     local pcall=`expr "$i" : '[^=]*=\([^=]*\)'`
 463     [ -x `which $pcall` ] && echo "s/@$pname@/$pcall/g" >>config.sed
 464 done
 465 # If nothing found in first loop, set the first pair anyway.
 466 for i in $PROGS; do
 467     local pname=`expr "$i" : '\([^=]*\)=[^=]*'`
 468     local pcall=`expr "$i" : '[^=]*=\([^=]*\)'`
 469     echo "s/@$pname@/$pcall/g" >>config.sed
 470 done
 471 # And, finally, the environment variables
 472 for i in $ENVIRONS; do
 473     local esciv=`eval echo '"'\$\{$i\}'"'`
 474     esciv="`echo $esciv | sed 's/\//\\\&/g'`"
 475     [ ! -z "$esciv" ] && esciv=" $esciv"
 476     echo "s/ \?@$i@/$esciv/g" >>config.sed
 477 done
 478 echo "$CUSTSUBS" >>config.sed
 479 }
 480 SubHeadLibsProgs
 481
 482 #### Apply substitutions to all files ################################
 483
 484 for i in $FILES; do
 485     sed -f config.sed $i.in > $i
 486 done
 487
 488 touch config.status
 489 cp config.status config.status.old
 490 echo "#! /bin/sh
 491 $0 $*
 492 `tail -n+3 config.status.old`" > config.status
 493 chmod u+x config.status
 494 rm -f config.status.old
 495
 496 die