comparison: make/update-rules.sh
make/update-rules.sh
- changeset 1158
- 96c202d45fbb
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| 1157:0a9f4d689c12 | 1158:96c202d45fbb |
|---|---|
| 1 #!/bin/sh | |
| 2 | |
| 3 # the directory where the executed Makefile is | |
| 4 dir="$1" | |
| 5 | |
| 6 # extra flags to add to the compile recipe (if you want to use extra | |
| 7 # flags for the dependency resolution, set CFLAGS environment variable) | |
| 8 extra_flags="$2" | |
| 9 | |
| 10 # additional source prefix in case the recipes are for a included Makefile | |
| 11 src_prefix="$3" | |
| 12 | |
| 13 # the target directory for the object files (default: ../build/$dir/) | |
| 14 target="$4" | |
| 15 | |
| 16 # the object file extension to use (default: $(OBJ_EXT) from the config.mk) | |
| 17 obj_ext="$5" | |
| 18 | |
| 19 | |
| 20 if [ -z "$dir" ]; then | |
| 21 echo "Usage: $0 <src_dir>" | |
| 22 exit 1 | |
| 23 fi | |
| 24 | |
| 25 if [ -z "$target" ]; then | |
| 26 target="../build/$dir/" | |
| 27 fi | |
| 28 | |
| 29 if [ -z "$obj_ext" ]; then | |
| 30 obj_ext='$(OBJ_EXT)' | |
| 31 fi | |
| 32 | |
| 33 if [ -d "$dir" ]; then | |
| 34 : | |
| 35 else | |
| 36 echo "'$dir' is not a directory" | |
| 37 exit 1 | |
| 38 fi | |
| 39 | |
| 40 if [ -z "$CC" ]; then | |
| 41 for cc in gcc clang ; do | |
| 42 if command -v "$cc" > /dev/null ; then | |
| 43 CC="$cc" | |
| 44 break | |
| 45 fi | |
| 46 done | |
| 47 fi | |
| 48 | |
| 49 if [ -z "$CC" ]; then | |
| 50 echo "No suitable compiler found to generate make rules" | |
| 51 exit 1 | |
| 52 fi | |
| 53 | |
| 54 if command -v sed > /dev/null ; then | |
| 55 : | |
| 56 else | |
| 57 echo "You need the 'sed' program for this script to work." | |
| 58 exit 1 | |
| 59 fi | |
| 60 | |
| 61 # cleanup include paths to only depend on non-system headers | |
| 62 cflags=`echo $CFLAGS | sed 's/-I\//-isystem \//g'` | |
| 63 | |
| 64 # switch into the directory of the executed Makefile and generate the recipes | |
| 65 cd "$dir" | |
| 66 | |
| 67 mv ${src_prefix}Makefile ${src_prefix}Makefile.old | |
| 68 sed '/FORCE:/q' ${src_prefix}Makefile.old > ${src_prefix}Makefile | |
| 69 echo >> ${src_prefix}Makefile | |
| 70 for file in `ls ${src_prefix}*.c` ; do | |
| 71 "$CC" -MT "$target$(basename $file .c)$obj_ext" -MM $cflags "$file" | |
| 72 printf '\t$(CC) -o $@ $(CFLAGS) %s -c $<\n\n' "$extra_flags" | |
| 73 done >> ${src_prefix}Makefile | |
| 74 rm ${src_prefix}Makefile.old |
