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#!/bin/sh
# kinda brittle, this, but mostly works
# just don't use names with whitespaces
target='confconf'
srcdir='src'
sources=`find $srcdir -type f -name '*.c' | sed -e "s/$srcdir\/\(.*\).c/\1.c/"`
objdir='build'
objects=`find $srcdir -type f -name '*.c' | sed -e "s/$srcdir\/\(.*\).c/\1.o/"`
cc='cc'
cflags='-Wall -O2'
cflagsdebug='-Wall -ggdb3 -O0 -DDEBUG'
prefix='/usr/local'
dbg_objects=`printf %s "$objects" | sed -e "s/^/dbg_/"`
sources_wdir=`printf %s "$sources" | sed -e "s/^/$srcdir\//"`
objects_wdir=`printf %s "$objects" | sed -e "s/^/$objdir\//"`
dgen='gcc'
if [ ! `2>/dev/null which gcc` ]; then
if [ ! `2>/dev/null which clang` ]; then
echo 'err: could not find a suitable ' \
'compiler for calculating dependencies'
return 1
fi
dgen='clang'
fi
{
printf %s\\n '.POSIX:'
printf %s\\n '.SUFFIXES:'
printf %s\\n ''
printf %s\\n "CC = $cc"
printf %s\\n "CFLAGS = $cflags"
printf %s\\n "CFLAGSDEBUG = $cflagsdebug"
printf %s\\n "PREFIX = $prefix"
printf %s\\n ''
printf %s\\n "all: objdir $target"
printf %s\\n ''
printf %s\\n "debug: objdir dbg_$target"
printf %s\\n ''
printf %s\\n 'objdir:'
printf %s\\n " mkdir -p $objdir"
printf %s\\n ''
printf %s\\n "install: all"
printf %s\\n ' mkdir -p $(DESTDIR)$(PREFIX)/bin'
printf %s\\n ' mkdir -p $(DESTDIR)$(PREFIX)/share/man/man1'
printf %s\\n " cp -f $target \$(DESTDIR)\$(PREFIX)/bin"
printf %s\\n " gzip < ${target}.1 > \$(DESTDIR)\$(PREFIX)/share/man/man1/${target}.1.gz"
printf %s\\n ''
printf %s\\n "$target: `printf %s "$objects" | tr '\n' ' '`"
printf %s\\n " \$(CC) \$(LDFLAGS) -o $target `printf %s "$objects_wdir" | tr '\n' ' '` \$(LDLIBS)"
printf %s\\n ''
printf %s\\n "dbg_$target: `printf %s "$dbg_objects" | tr '\n' ' '`"
printf %s\\n " \$(CC) \$(LDFLAGS) -o $target `printf %s "$objects_wdir" | tr '\n' ' '` \$(LDLIBS)"
printf %s\\n ''
printf %s\\n "$sources" | (while IFS= read -r s; do
$dgen $CFLAGS -MM -MT `printf %s $s | sed -e 's/\.c$/\.o/'` "$srcdir/$s"
printf %s\\n " \$(CC) -c \$(CFLAGS) -o ${objdir}/`printf %s $s | sed -e 's/\.c$/\.o/'` ${srcdir}/$s"
done
)
printf %s\\n ''
printf %s\\n "$sources" | (while IFS= read -r s; do
$dgen $CFLAGS -MM -MT dbg_`printf %s $s | sed -e 's/\.c$/\.o/'` "$srcdir/$s"
printf %s\\n " \$(CC) -c \$(CFLAGSDEBUG) -o ${objdir}/`printf %s $s | sed -e 's/\.c$/\.o/'` ${srcdir}/$s"
done
)
printf %s\\n ''
printf %s\\n 'clean:'
printf %s\\n " rm -f $target"
printf %s\\n " rm -rf $objdir"
} > Makefile
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