summaryrefslogtreecommitdiff
path: root/configure
blob: 3bebe3b8a065e62dd5fd415196519678d92c4a9e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
#!/bin/sh

. package/info

usage () {
cat <<EOF
Usage: $0 [OPTION]... [TARGET]

Defaults for the options are specified in brackets.

System types:
  --target=TARGET               configure to run on target TARGET [detected]
  --host=TARGET                 same as --target

Installation directories:
  --prefix=PREFIX               main installation prefix [/]
  --exec-prefix=EPREFIX         installation prefix for executable files [PREFIX]

Fine tuning of the installation directories:
  --dynlibdir=DIR               shared library files [PREFIX/lib]
  --bindir=BINDIR               user executables [EPREFIX/bin]
  --libexecdir=DIR              package-scoped executables [EPREFIX/libexec]
  --libdir=DIR                  static library files [PREFIX/lib/$package]
  --includedir=DIR              C header files [PREFIX/include]

 If no --prefix option is given, by default libdir (but not dynlibdir) will be
 /usr/lib/$package, and includedir will be /usr/include.

Dependencies:
  --with-sysdeps=DIR            use sysdeps in DIR [PREFIX/lib/skalibs/sysdeps]
  --with-include=DIR            add DIR to the list of searched directories for headers
  --with-lib=DIR                add DIR to the list of searched directories for static libraries
  --with-dynlib=DIR             add DIR to the list of searched directories for shared libraries

 If no --prefix option is given, by default sysdeps will be fetched from
 /usr/lib/skalibs/sysdeps.

Optional features:
  --enable-shared               build shared libraries [disabled]
  --disable-static              do not build static libraries [enabled]
  --disable-allstatic           do not prefer linking against static libraries [enabled]
  --enable-static-libc          make entirely static binaries [disabled]
  --enable-all-pic              build everything as PIC [enabled iff toolchain builds PIE]
  --enable-slashpackage[=ROOT]  assume /package installation at ROOT [disabled]
  --enable-absolute-paths       do not rely on PATH to access this package's binaries,
                                  hardcode absolute BINDIR/foobar paths instead [disabled]

SSL support:
  --enable-ssl=libressl|bearssl build SSL tools, w/ libtls or bearssl implementation [disabled]
  --with-ssl-path=DIR           search for SSL headers/libs in DIR/include and DIR/lib [/usr]

EOF
exit 0
}

# Helper functions

# If your system does not have printf, you can comment this, but it is
# generally not a good idea to use echo.
# See http://www.etalabs.net/sh_tricks.html
echo () {
  IFS=" "
  printf %s\\n "$*"
}

quote () {
  tr '\n' ' ' <<EOF | grep '^[-[:alnum:]_=,./:]* $' >/dev/null 2>&1 && { echo "$1" ; return 0 ; }
$1
EOF
  echo "$1" | sed -e "s/'/'\\\\''/g" -e "1s/^/'/" -e "\$s/\$/'/" -e "s#^'\([-[:alnum:]_,./:]*\)=\(.*\)\$#\1='\2#" -e "s|\*/|* /|g"
}

fail () {
  echo "$*"
  exit 1
}

fnmatch () {
  eval "case \"\$2\" in $1) return 0 ;; *) return 1 ;; esac"
}

cmdexists () {
  type "$1" >/dev/null 2>&1
}

trycc () {
  test -z "$CC_AUTO" && cmdexists "$1" && CC_AUTO="$*"
}

stripdir () {
  while eval "fnmatch '*/' \"\${$1}\"" ; do
    eval "$1=\${$1%/}"
  done
}

tryflag () {
  echo "checking whether compiler accepts $2 ..."
  echo "typedef int x;" > "$tmpc"
  if $CC_AUTO $CPPFLAGS_AUTO $CPPFLAGS $CPPFLAGS_POST $CFLAGS_AUTO $CFLAGS $CFLAGS_POST "$2" -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
    echo "  ... yes"
    eval "$1=\"\${$1} \$2\""
    eval "$1=\${$1# }"
    return 0
  else
    echo "  ... no"
    return 1
  fi
}

tryldflag () {
  echo "checking whether linker accepts $2 ..."
  echo "typedef int x;" > "$tmpc"
  if $CC_AUTO $CFLAGS_AUTO $CFLAGS $CFLAGS_POST $LDFLAGS_AUTO $LDFLAGS $LDFLAGS_POST -nostdlib "$2" -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
    echo "  ... yes"
    eval "$1=\"\${$1} \$2\""
    eval "$1=\${$1# }"
    return 0
  else
    echo "  ... no"
    return 1
  fi
}


# Actual script

CC_AUTO=
CPPFLAGS_AUTO="-D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700 -iquote src/include-local -Isrc/include"
CPPFLAGS_POST="$CPPFLAGS"
CPPFLAGS=
CFLAGS_AUTO="-pipe -Wall"
CFLAGS_POST="$CFLAGS"
CFLAGS=-O2
LDFLAGS_AUTO=
LDFLAGS_POST="$LDFLAGS"
LDFLAGS=
LDFLAGS_NOSHARED=
LDFLAGS_SHARED=-shared
prefix=
exec_prefix='$prefix'
dynlibdir='$prefix/lib'
libexecdir='$exec_prefix/libexec'
bindir='$exec_prefix/bin'
libdir='$prefix/lib/$package'
includedir='$prefix/include'
sysdeps='$prefix/lib/skalibs/sysdeps'
manualsysdeps=false
shared=false
static=true
allpic=detect
slashpackage=false
abspath=false
sproot=
home=
exthome=
allstatic=true
evenmorestatic=false
addincpath=''
addlibspath=''
addlibdpath=''
vpaths=''
vpathd=''
build=
ssl=

for arg ; do
  case "$arg" in
    --help) usage ;;
    --prefix=*) prefix=${arg#*=} ;;
    --exec-prefix=*) exec_prefix=${arg#*=} ;;
    --dynlibdir=*) dynlibdir=${arg#*=} ;;
    --libexecdir=*) libexecdir=${arg#*=} ;;
    --bindir=*) bindir=${arg#*=} ;;
    --libdir=*) libdir=${arg#*=} ;;
    --includedir=*) includedir=${arg#*=} ;;
    --with-sysdeps=*) sysdeps=${arg#*=} manualsysdeps=true ;;
    --with-include=*) var=${arg#*=} ; stripdir var ; addincpath="$addincpath -I$var" ;;
    --with-lib=*) var=${arg#*=} ; stripdir var ; addlibspath="$addlibspath -L$var" ; vpaths="$vpaths $var" ;;
    --with-dynlib=*) var=${arg#*=} ; stripdir var ; addlibdpath="$addlibdpath -L$var" ; vpathd="$vpathd $var" ;;
    --enable-shared|--enable-shared=yes) shared=true ;;
    --disable-shared|--enable-shared=no) shared=false ;;
    --enable-static|--enable-static=yes) static=true ;;
    --disable-static|--enable-static=no) static=false ;;
    --enable-allstatic|--enable-allstatic=yes) allstatic=true ;;
    --disable-allstatic|--enable-allstatic=no) allstatic=false ; evenmorestatic=false ;;
    --enable-static-libc|--enable-static-libc=yes) allstatic=true ; evenmorestatic=true ;;
    --disable-static-libc|--enable-static-libc=no) evenmorestatic=false ;;
    --enable-all-pic|--enable-all-pic=yes) allpic=true ;;
    --disable-all-pic|--enable-all-pic=no) allpic=false ;;
    --enable-slashpackage=*) sproot=${arg#*=} ; slashpackage=true ; ;;
    --enable-slashpackage) sproot= ; slashpackage=true ;;
    --disable-slashpackage) sproot= ; slashpackage=false ;;
    --enable-absolute-paths|--enable-absolute-paths=yes) abspath=true ;;
    --disable-absolute-paths|--enable-absolute-paths=no) abspath=false ;;
    --enable-ssl=libressl) ssl=tls ;;
    --enable-ssl=bearssl) ssl=bearssl ;;
    --disable-ssl|--enable-ssl=none) ssl= ;;
    --with-ssl-path=*) var=${arg#*=} ; stripdir var ; addincpath="$addincpath -I$var/include" ; addlibspath="$addlibspath -L$var/lib" ; vpaths="$vpaths $var/lib" ; addlibdpath="$addlibdpath -L$var/lib" ; vpathd="$vpathd $var/lib" ;;
    --enable-*|--disable-*|--with-*|--without-*|--*dir=*) ;;
    --host=*|--target=*) target=${arg#*=} ;;
    --build=*) build=${arg#*=} ;;
    -* ) echo "$0: unknown option $arg" ;;
    *=*) ;;
    *) target=$arg ;;
  esac
done

# Add /usr in the default default case
if test -z "$prefix" ; then
  if test "$libdir" = '$prefix/lib/$package' ; then
    libdir=/usr/lib/$package
  fi
  if test "$includedir" = '$prefix/include' ; then
    includedir=/usr/include
  fi
  if test "$sysdeps" = '$prefix/lib/skalibs/sysdeps' ; then
    sysdeps=/usr/lib/skalibs/sysdeps
  fi
fi

# Expand installation directories
stripdir prefix
for i in exec_prefix dynlibdir libexecdir bindir libdir includedir sysdeps sproot ; do
  eval tmp=\${$i}
  eval $i=$tmp
  stripdir $i
done

# Get usable temp filenames
i=0
set -C
while : ; do
  i=$(($i+1))
  tmpc="./tmp-configure-$$-$PPID-$i.c"
  tmpe="./tmp-configure-$$-$PPID-$i.tmp"
  2>|/dev/null > "$tmpc" && break
  2>|/dev/null > "$tmpe" && break
  test "$i" -gt 50 && fail "$0: cannot create temporary files"
done
set +C
trap 'rm -f "$tmpc" "$tmpe"' EXIT ABRT INT QUIT TERM HUP

# Set slashpackage values
if $slashpackage ; then
  home=${sproot}/package/${category}/${package}-${version}
  exthome=${sproot}/package/${category}/${package}
  if $manualsysdeps ; then
    :
  else
    sysdeps=${sproot}/package/prog/skalibs/sysdeps
  fi
  extbinprefix=${exthome}/command
  dynlibdir=${home}/library.so
  bindir=${home}/command
  libdir=${home}/library
  libexecdir=$bindir
  includedir=${home}/include
  while read dep ; do
    addincpath="$addincpath -I${sproot}${dep}/include"
    vpaths="$vpaths ${sproot}${dep}/library"
    addlibspath="$addlibspath -L${sproot}${dep}/library"
    vpathd="$vpathd ${sproot}${dep}/library.so"
    addlibdpath="$addlibdpath -L${sproot}${dep}/library.so"
  done < package/deps-build
fi

# Find a C compiler to use
if test -n "$target" && test x${build} != x${target} ; then
  cross=${target}-
else
  cross=
fi
echo "checking for C compiler..."
trycc ${cross}${CC}
trycc ${cross}gcc
trycc ${cross}clang
trycc ${cross}cc
test -n "$CC_AUTO" || { echo "$0: cannot find a C compiler" ; exit 1 ; }
echo "  ... $CC_AUTO"
echo "checking whether C compiler works... "
echo "typedef int x;" > "$tmpc"
if $CC_AUTO $CPPFLAGS_AUTO $CPPFLAGS $CPPFLAGS_POST $CFLAGS_AUTO $CFLAGS $CFLAGS_POST -c -o /dev/null "$tmpc" 2>"$tmpe" ; then
  echo "  ... yes"
else
  echo "  ... no. Compiler output follows:"
  cat < "$tmpe"
  exit 1
fi

echo "checking target system type..."
if test -z "$target" ; then
  if test -n "$build" ; then
    target=$build ;
  else
    target=$($CC_AUTO -dumpmachine 2>/dev/null) || target=unknown
  fi
fi
echo "  ... $target"
if test ! -d $sysdeps || test ! -f $sysdeps/target ; then
  echo "$0: error: $sysdeps is not a valid sysdeps directory"
  exit 1
fi
if [ "x$target" != "x$(cat $sysdeps/target)" ] ; then
  echo "$0: error: target $target does not match the contents of $sysdeps/target"
  exit 1
fi

if test $allpic = detect ; then
  echo "Checking whether we need to build everything as PIC..."
  if $CC_AUTO $CPPFLAGS_AUTO $CPPFLAGS $CPPFLAGS_POST $CFLAGS_AUTO $CFLAGS $CFLAGS_POST -dM -E - < /dev/null | grep -qF __PIE__ ; then
    allpic=true
    echo "  ... yes"
  else
    allpic=false
    echo "  ... no"
  fi
fi
if $allpic ; then
  tryflag CFLAGS_AUTO -fPIC
fi

spawn_lib=$(cat $sysdeps/spawn.lib)
socket_lib=$(cat $sysdeps/socket.lib)
sysclock_lib=$(cat $sysdeps/sysclock.lib)
tainnow_lib=$(cat $sysdeps/tainnow.lib)
timer_lib=$(cat $sysdeps/timer.lib)
util_lib=$(cat $sysdeps/util.lib)

tryflag CFLAGS_AUTO -std=c99
tryflag CFLAGS -fomit-frame-pointer
tryflag CFLAGS_AUTO -fno-exceptions
tryflag CFLAGS_AUTO -fno-unwind-tables
tryflag CFLAGS_AUTO -fno-asynchronous-unwind-tables
tryflag CFLAGS_AUTO -Wa,--noexecstack
tryflag CFLAGS -fno-stack-protector
tryflag CPPFLAGS_AUTO -Werror=implicit-function-declaration
tryflag CPPFLAGS_AUTO -Werror=implicit-int
tryflag CPPFLAGS_AUTO -Werror=pointer-sign
tryflag CPPFLAGS_AUTO -Werror=pointer-arith
tryflag CPPFLAGS_AUTO -Wno-unused-value
tryflag CFLAGS_AUTO -ffunction-sections
tryflag CFLAGS_AUTO -fdata-sections

tryldflag LDFLAGS_AUTO -Wl,--sort-section=alignment
tryldflag LDFLAGS_AUTO -Wl,--sort-common

CPPFLAGS_AUTO="${CPPFLAGS_AUTO}${addincpath}"

if $evenmorestatic ; then
  LDFLAGS_NOSHARED=-static
fi

if $shared ; then
  tryldflag LDFLAGS -Wl,--hash-style=both
fi

LDFLAGS_SHARED="${LDFLAGS_SHARED}${addlibdpath}"

if $allstatic ; then
  LDFLAGS_NOSHARED="${LDFLAGS_NOSHARED}${addlibspath}"
  tryldflag LDFLAGS_NOSHARED -Wl,--gc-sections
else
  LDFLAGS_NOSHARED="${LDFLAGS_NOSHARED}${addlibdpath}"
fi

if test -z "$vpaths" ; then
  while read dep ; do
    base=$(basename $dep) ;
    vpaths="$vpaths /usr/lib/$base"
    addlibspath="$addlibspath -L/usr/lib/$base"
  done < package/deps-build  
fi

echo "creating config.mak..."
cmdline=$(quote "$0")
for i ; do cmdline="$cmdline $(quote "$i")" ; done
exec 3>&1 1>config.mak
cat << EOF
# This file was generated by:
# $cmdline
# Any changes made here will be lost if configure is re-run.

target := $target
package := $package
prefix := $prefix
exec_prefix := $exec_prefix
dynlibdir := $dynlibdir
libexecdir := $libexecdir
bindir := $bindir
libdir := $libdir
includedir := $includedir
sysdeps := $sysdeps
slashpackage := $slashpackage
sproot := $sproot
version := $version
home := $home
exthome := $exthome
SPAWN_LIB := ${spawn_lib}
SOCKET_LIB := ${socket_lib}
SYSCLOCK_LIB := ${sysclock_lib}
TAINNOW_LIB := ${tainnow_lib}
TIMER_LIB := ${timer_lib}
UTIL_LIB := ${util_lib}

CC := ${CC_AUTO##${cross}}
CPPFLAGS_AUTO := $CPPFLAGS_AUTO
CPPFLAGS := $CPPFLAGS $CPPFLAGS_POST
CFLAGS_AUTO := $CFLAGS_AUTO
CFLAGS := $CFLAGS $CFLAGS_POST
LDFLAGS_AUTO := $LDFLAGS_AUTO
LDFLAGS := $LDFLAGS $LDFLAGS_POST
LDFLAGS_SHARED := $LDFLAGS_SHARED
LDFLAGS_NOSHARED := $LDFLAGS_NOSHARED
CROSS_COMPILE := $cross

vpath lib%.a$vpaths
vpath lib%.so$vpathd
EOF
if $allstatic ; then
  echo ".LIBPATTERNS := lib%.a"
  echo "DO_ALLSTATIC := 1"
else
  echo ".LIBPATTERNS := lib%.so"
fi
if $static ; then
  echo "DO_STATIC := 1"
else
  echo "DO_STATIC :="
fi
if $shared ; then
  echo "DO_SHARED := 1"
else
  echo "DO_SHARED :="
fi
if $ allpic ; then
  echo "STATIC_LIBS_ARE_PIC := 1"
else
  echo "STATIC_LIBS_ARE_PIC :="
fi
if test -n $ssl ; then
  echo "SSL_IMPL := $ssl"
else
  echo "SSL_IMPL :="
fi

exec 1>&3 3>&-
echo "  ... done."

echo "creating src/include/${package}/config.h..."
mkdir -p -m 0755 src/include/${package}
exec 3>&1 1> src/include/${package}/config.h
cat <<EOF
/* ISC license. */

/* Generated by: $cmdline */

#ifndef ${package_macro_name}_CONFIG_H
#define ${package_macro_name}_CONFIG_H

#define ${package_macro_name}_VERSION "$version"
EOF
if $slashpackage ; then
  echo "#define ${package_macro_name}_BINPREFIX \"$bindir/\""
  echo "#define ${package_macro_name}_EXTBINPREFIX \"$extbinprefix/\""
elif $abspath ; then
  echo "#define ${package_macro_name}_BINPREFIX \"$bindir/\""
  echo "#define ${package_macro_name}_EXTBINPREFIX \"$bindir/\""
else
  echo "#define ${package_macro_name}_BINPREFIX \"\""
  echo "#define ${package_macro_name}_EXTBINPREFIX \"\""
fi
echo "#define ${package_macro_name}_LIBEXECPREFIX \"$libexecdir/\""
if test "tls" = "$ssl" ; then
  echo "#define ${package_macro_name}_USE_TLS"
else
  echo "#undef ${package_macro_name}_USE_TLS"
fi
if test "bearssl" = "$ssl" ; then
  echo "#define ${package_macro_name}_USE_BEARSSL"
else
  echo "#undef ${package_macro_name}_USE_BEARSSL"
fi

echo
echo "#endif"
exec 1>&3 3>&-
echo "  ... done."