scripts/patch-specs.sh

   1 #!/usr/bin/env bash
   2
   3 DIR="$1"
   4
   5 if [ -d "$DIR" ]; then
   6         DIR="$(cd "$DIR"; pwd)"
   7 else
   8         echo "Usage: $0 toolchain-dir"
   9         exit 1
  10 fi
  11
  12 echo -n "Locating cpp ... "
  13 for bin in bin usr/bin usr/local/bin; do
  14         for cmd in "$DIR/$bin/"*-cpp; do
  15                 if [ -x "$cmd" ]; then
  16                         echo "$cmd"
  17                         CPP="$cmd"
  18                         break
  19                 fi
  20         done
  21 done
  22
  23 if [ ! -x "$CPP" ]; then
  24         echo "Can't locate a cpp executable in '$DIR' !"
  25         exit 1
  26 fi
  27
  28 patch_specs() {
  29         local found=0
  30
  31         for lib in $(STAGING_DIR="$DIR" "$CPP" -x c -v /dev/null 2>&1 | sed -ne 's#:# #g; s#^LIBRARY_PATH=##p'); do
  32                 if [ -d "$lib" ]; then
  33                         grep -qs "STAGING_DIR" "$lib/specs" && rm -f "$lib/specs"
  34                         if [ $found -lt 1 ]; then
  35                                 echo -n "Patching specs ... "
  36                                 STAGING_DIR="$DIR" "$CPP" -dumpspecs | awk '
  37                                         mode ~ "link" {
  38                                                 sub("%{L.}", "%{L*} -L %:getenv(STAGING_DIR /usr/lib) -rpath-link %:getenv(STAGING_DIR /usr/lib)")
  39                                         }
  40                                         mode ~ "cpp" {
  41                                                 $0 = $0 " -idirafter %:getenv(STAGING_DIR /usr/include)"
  42                                         }
  43                                         {
  44                                                 print $0
  45                                                 mode = ""
  46                                         }
  47                                         /^\*cpp:/ {
  48                                                 mode = "cpp"
  49                                         }
  50                                         /^\*link.*:/ {
  51                                                 mode = "link"
  52                                         }
  53                                 ' > "$lib/specs"
  54                                 echo "ok"
  55                                 found=1
  56                         fi
  57                 fi
  58         done
  59
  60         [ $found -gt 0 ]
  61         return $?
  62 }
  63
  64
  65 VERSION="$(STAGING_DIR="$DIR" "$CPP" --version | sed -ne 's/^.* (.*) //; s/ .*$//; 1p')"
  66 VERSION="${VERSION:-unknown}"
  67
  68 case "${VERSION##* }" in
  69         2.*|3.*|4.0.*|4.1.*|4.2.*)
  70                 echo "The compiler version does not support getenv() in spec files."
  71                 echo -n "Wrapping binaries instead ... "
  72
  73                 if "${0%/*}/ext-toolchain.sh" --toolchain "$DIR" --wrap "${CPP%/*}"; then
  74                         echo "ok"
  75                         exit 0
  76                 else
  77                         echo "failed"
  78                         exit $?
  79                 fi
  80         ;;
  81         *)
  82                 if patch_specs; then
  83                         echo "Toolchain successfully patched."
  84                         exit 0
  85                 else
  86                         echo "Failed to locate library directory!"
  87                         exit 1
  88                 fi
  89         ;;
  90 esac