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refactor configure script

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Generate a makefile config instead of a makefile with predefined
constants. This makes the build a bit more easier to modify. Also
improve the makefile and apply some suggestions from shellcheck. :)
This commit is contained in:
Jeremy Baxter 2024-02-28 16:18:06 +13:00
parent 4bb8d391fd
commit f1b79c2a7c
3 changed files with 60 additions and 66 deletions
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95
configure vendored
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@ -4,40 +4,9 @@
set -e
import=import
mkf=Makefile
mkf=config.mk
objs='esv.o esvapi.o initial.o'
srcs='esv.d esvapi.d initial.d'
makefile='
IMPORT = '"$import"'
PREFIX = /usr/local
MANPREFIX = ${PREFIX}/man
DC = ${_DC}
CFLAGS = ${_CFLAGS}
OBJS = ${_OBJS}
all: esv
esv: ${OBJS}
${DC} ${_LDFLAGS} -of=$@ ${OBJS}
.SUFFIXES: .d .o
.d.o:
${DC} ${CFLAGS} -c $<
clean:
rm -f esv ${OBJS} ${INIOBJS}
install:
install -Dm755 esv ${DESTDIR}${PREFIX}/bin/esv
install -Dm644 esv.1 ${DESTDIR}${MANPREFIX}/man1/esv.1
install -Dm644 esv.conf.5 ${DESTDIR}${MANPREFIX}/man5/esv.conf.5
.PHONY: all clean install
'
# utility functions
@ -45,10 +14,10 @@ present () {
command -v "$1" 1>/dev/null 2>/dev/null
}
using () {
>&2 printf "using $1\n"
>&2 printf "using %s\n" "$1"
}
error () {
>&2 printf "$(basename $0): $1\n"
throw () {
>&2 printf "%s: %s\n" "$(basename "$0")" "$1"
exit 1
}
@ -56,7 +25,7 @@ error () {
## D compiler
gen_DC () {
if ! [ -z "$dc" ]; then
if [ -n "$dc" ]; then
using "$dc"
return 0
fi
@ -65,7 +34,7 @@ gen_DC () {
elif present dmd; then
dc=dmd
else
error "D compiler not found; install ldc or dmd"
throw "D compiler not found; install ldc or dmd"
fi
using "$dc"
@ -101,7 +70,7 @@ gen_LDFLAGS () {
fi
fi
if [ -z "$debug" ]; then
if ! [ -z "$ldflags" ]; then ldflags="$ldflags "; fi
if [ -n "$ldflags" ]; then ldflags="$ldflags "; fi
ldflags="$ldflags-L--gc-sections"
fi
@ -118,7 +87,7 @@ while getopts c:dhr ch; do
case "$OPTARG" in
ldc2) dc="ldc2" ;;
dmd) dc="dmd" ;;
*) error "unknown D compiler '$OPTARG' specified (valid options: ldc2, dmd)" ;;
*) throw "unknown D compiler '$OPTARG' specified (valid options: ldc2, dmd)" ;;
esac
;;
d) debug=1 ;;
@ -135,7 +104,7 @@ options:
EOF
exit 0
;;
?) exit 1 ;;
'?') exit 1 ;;
:) exit 1 ;;
esac
done
@ -147,33 +116,29 @@ gen_CFLAGS
gen_LDFLAGS
rm -f "$mkf"
printf '# begin generated definitions' >>"$mkf"
printf '
{
printf '# begin generated definitions
_DC = %s
_CFLAGS = %s
_LDFLAGS = %s
' \
"$dc" \
"$cflags" \
"$ldflags" \
>>"$mkf"
## generate obj list
printf '_OBJS =' >>"$mkf"
for obj in $objs; do
printf " $obj" >>"$mkf"
done
printf '\n' >>"$mkf"
printf '# end generated definitions\n' >>"$mkf"
' "$dc" "$cflags" "$ldflags"
printf "$makefile" >>"$mkf"
## generate obj list
printf '_OBJS ='
for obj in $objs; do
printf ' %s' "$obj"
done
printf '\n# end generated definitions\n'
## generate dependency list
>&2 printf "generating dependency list\n"
printf '\n# begin generated dependencies\n' >>"$mkf"
i=1
for obj in $objs; do
"$dc" -O0 -o- -makedeps \
"$(printf "$srcs" | awk '{print $'"$i"'}')" >>"$mkf"
i="$(($i + 1))"
done
printf '# end generated dependencies\n' >>"$mkf"
## generate dependency list
printf '\n# begin generated dependencies\n'
i=1
for obj in $objs; do
"$dc" -o- -makedeps \
"$(printf '%s' "$srcs" | awk '{print $'"$i"'}')"
i="$((i + 1))"
done
unset i
printf '# end generated dependencies\n'
} >>"$mkf"