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New configure-based build system. Still work in progress, but much improved
author Sam Lantinga <slouken@libsdl.org>
date Thu, 16 Feb 2006 10:11:48 +0000
parents
children 9a9b87172b4b
rev   line source
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
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1 #!/bin/sh
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2 #
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3 # Generate dependencies from a list of source files
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4
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5 # Check to make sure our environment variables are set
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6 if test x"$INCLUDE" = x -o x"$SOURCES" = x -o x"$objects" = x -o x"$output" = x; then
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7 echo "SOURCES, INCLUDE, objects, and output needs to be set"
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8 exit 1
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9 fi
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10 cache_prefix=".#$$"
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11
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12 generate_var()
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13 {
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14 echo $1 | sed -e 's|^.*/||' -e 's|\.|_|g'
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15 }
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16
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17 search_deps()
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18 {
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19 base=`echo $1 | sed 's|/[^/]*$||'`
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20 grep '#include "' <$1 | sed -e 's|.*"\([^"]*\)".*|\1|' | \
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21 while read file
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22 do cache=${cache_prefix}_`generate_var $file`
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23 if test -f $cache; then
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24 # We already ahve this cached
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25 cat $cache
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26 continue;
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27 fi
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28 for path in $base `echo $INCLUDE | sed 's|-I||g'`
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29 do dep="$path/$file"
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30 if test -f "$dep"; then
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31 echo " $dep \\" >$cache
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32 echo " $dep \\"
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33 generate_dep $dep
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34 break
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35 fi
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36 done
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37 done
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38 }
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39
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40 generate_dep()
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41 {
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42 cat >>${output}.new <<__EOF__
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43 $1: \\
19418e4422cb New configure-based build system. Still work in progress, but much improved
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44 `search_deps $1`
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45
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46 __EOF__
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47 }
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48
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49 :>${output}.new
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50 for src in $SOURCES
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51 do echo "Generating dependencies for $src"
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52 generate_dep $src
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53 ext=`echo $src | sed 's|.*\.\(.*\)|\1|'`
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54 obj=`echo $src | sed "s|^.*/\([^ ]*\)\..*|$objects/\1.lo|g"`
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55 echo "$obj: $src" >>${output}.new
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56 case $ext in
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57 asm) echo " \$(BUILDASM)" >>${output}.new;;
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58 cc) echo " \$(BUILDCC)" >>${output}.new;;
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59 c) echo " \$(BUILDC)" >>${output}.new;;
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60 m) echo " \$(BUILDM)" >>${output}.new;;
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61 *) echo "Unknown file extension: $ext";;
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62 esac
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63 echo "" >>${output}.new
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64 done
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65 rm -f ${cache_prefix}*
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66 mv ${output}.new ${output}