source: git/configure.ac @ 1698844

stereo-2025
Last change on this file since 1698844 was ce668fb, checked in by Olly Betts <olly@…>, 4 months ago

Use putchar_unlocked() where available

  • Property mode set to 100644
File size: 13.6 KB
RevLine 
[c746b4d]1dnl Process this file with autoconf to produce a configure script
[483ac4e]2
[a884696]3dnl Need autoconf 2.50 or later for AC_ARG_VAR.  2.59 has been around for
4dnl long enough, that we might as well just require that.
5AC_PREREQ(2.59)
[a6a956a]6AC_INIT([survex], [1.4.16], [https://trac.survex.com/])
[6e0cdc2c]7AM_INIT_AUTOMAKE([1.5 gnu -Wall -Wportability -Werror])
[191536f]8RELEASE=1
[79b37a4c]9
[5636835]10AC_SUBST(RELEASE)
[e02a6a6]11AC_CONFIG_HEADERS([config.h])
[5b7b184]12AC_CONFIG_SRCDIR([src/aven.cc])
[96cc0ab]13
[f78ff43]14COPYRIGHT_MSG="Copyright (C) 1990-2025 Olly Betts"
[920b066]15AVEN_COPYRIGHT_MSG="Copyright (C) 1999-2003,2005,2006 Mark R. Shinwell"
[55302e3]16
[8c05f13]17AC_DEFINE_UNQUOTED(COPYRIGHT_MSG, ["$COPYRIGHT_MSG"], [Copyright Message])
18AC_DEFINE_UNQUOTED(AVEN_COPYRIGHT_MSG, ["$AVEN_COPYRIGHT_MSG"],
[99f252b]19                   [Copyright Message for Aven])
20
21AC_SUBST(COPYRIGHT_MSG)
22AC_SUBST(AVEN_COPYRIGHT_MSG)
[706b033]23
[5627cbb]24COPYRIGHT_MSG_UTF8=`echo "$COPYRIGHT_MSG"|sed 's/(C)/©/'`
25AVEN_COPYRIGHT_MSG_UTF8=`echo "$AVEN_COPYRIGHT_MSG"|sed 's/(C)/©/'`
26
27AC_DEFINE_UNQUOTED(COPYRIGHT_MSG_UTF8, ["$COPYRIGHT_MSG_UTF8"],
28                   [Copyright Message in UTF-8])
29AC_DEFINE_UNQUOTED(AVEN_COPYRIGHT_MSG_UTF8, ["$AVEN_COPYRIGHT_MSG_UTF8"],
30                   [Copyright Message for Aven in UTF-8])
31
[1d43ee5]32dnl set PRETTYPACKAGE to PACKAGE with the first character capitalised
[21fbe7d]33PRETTYPACKAGE=`echo "$PACKAGE"|cut -b1|tr a-z A-Z``echo "$PACKAGE"|cut -b2-`
[82afbc4]34AC_DEFINE_UNQUOTED(PRETTYPACKAGE, "$PRETTYPACKAGE",
[99f252b]35                   [Name of package (capitalised)])
[aa931b2]36AC_SUBST(PRETTYPACKAGE)
37
[e2546c0]38dnl set COMMAVERSION to VERSION with the dots replaced by commas -
39dnl e.g. "0,99" or "1,0,22"
[21fbe7d]40COMMAVERSION=`echo "$VERSION"|tr '.' ','`
[e2546c0]41AC_DEFINE_UNQUOTED(COMMAVERSION, $COMMAVERSION,
[1db3fa5]42                   [Version number of package (comma-separated)])
[e2546c0]43AC_SUBST(COMMAVERSION)
44
[d0a7bba]45PKGDOCDIR='${prefix}/share/doc/${PACKAGE}'
[4b4bd47]46AC_ARG_ENABLE(docdir,
47[  --enable-docdir=DIR Set directory for installing documentation to DIR],
[21fbe7d]48[case $enableval in
[4b4bd47]49 yes|no)
50  AC_MSG_ERROR([configure: Syntax: configure --enable-docdir=DIR]) ;;
51esac
[ab27074]52PKGDOCDIR="$enableval"
[4b4bd47]53]
54)
[e2ac794]55PKGDOCDIR_EXPANDED=`
[21fbe7d]56 test NONE = "$prefix" && prefix="$ac_default_prefix"
57 test NONE = "$exec_prefix" && exec_prefix="$prefix"
58 eval echo "$PKGDOCDIR"
[e2ac794]59`
[4b4bd47]60AC_SUBST(PKGDOCDIR)
[9b579156]61AC_SUBST(PKGDOCDIR_EXPANDED)
[4b4bd47]62
[4d0204a]63AC_CANONICAL_HOST
[984f49e]64
[55302e3]65dnl Checks for programs.
66AC_PROG_CC
[f78ad72]67AC_PROG_CPP
[5809313]68
[f665d6e]69AC_PROG_CXX
70AC_PROG_CXXCPP
[039fb01]71
[4a7c2f0d]72dnl Probe for any options needed to enable C++11 support.
73AX_CXX_COMPILE_STDCXX_11
74
[c13d1930]75AM_PROG_CC_C_O
76
[0177571]77AC_LANG([C])
[55302e3]78
[96cc0ab]79AC_EXEEXT
80AC_OBJEXT
81
[2032841]82mswindows=no
[559cd60]83macos=no
[21fbe7d]84case $host_os in
[559cd60]85darwin*) macos=yes ;;
[4d0204a]86*mingw*|*cygwin*|windows*) mswindows=yes ;;
87esac
88
[21c226e]89AC_C_BIGENDIAN
[bd63572]90
[c746b4d]91AC_ARG_VAR(STRIP, [Command for discarding symbols from object files])
[4a6f8f6]92AC_PATH_TOOL(STRIP, strip, [echo "not stripping "])
[55302e3]93
[647407d]94AC_CHECK_LIB(m, sqrt)
95
[3d848a3]96dnl x86 has excess precision issues with 387 FP instructions, which are
97dnl avoided by using SSE instructions instead.  By default we require SSE2
98dnl which for Intel means a Pentium 4 which was launched in 2000; Pentium
99dnl 3 was finally discontinued in 2007.
100AC_ARG_ENABLE([sse],
101[AS_HELP_STRING([--disable-sse],
102                [disable use of SSE FP instructions on x86])]
103[AS_HELP_STRING([[--enable-sse[=sse|sse2]]],
104                [set which SSE FP instructions to use on x86 (default: sse2)])],
105  [case ${enableval} in
106    sse|sse2|yes|no) ;;
107    *) AC_MSG_ERROR([bad value ${enableval} for --enable-sse or --disable-sse]) ;;
108  esac],
109  [enable_sse=yes])
110
111AC_MSG_CHECKING([whether to use SSE instructions on x86])
112case $host_cpu in
113  i*86)
114    if test "$enable_sse" = no ; then
115      AC_MSG_RESULT([no - WARNING: Testsuite will probably fail])
116    else
117      dnl Default to sse2.
118      test "$enable_sse" != yes || enable_sse=sse2
119      if test yes = "$GXX"; then
120        AC_MSG_RESULT([yes (configure with --disable-sse to disable)])
121        dnl We can unconditionally use -mtune=generic as it was added in GCC
122        dnl 4.2, and supported at least as far back as clang 3.0.
123        AM_CXXFLAGS="$AM_CXXFLAGS -mfpmath=sse -m$enable_sse -mtune=generic"
124      else
125        AC_MSG_RESULT([don't know how to for compiler $CXX])
126      fi
127    fi
128    ;;
129  *)
130    AC_MSG_RESULT([non-x86 arch ($host_cpu)]) ;;
131esac
132
[7e2f708]133dnl The wxWidgets libraries we need:
[f31090c]134wx_libs="core,gl"
[7e2f708]135
[a3f519b]136AC_ARG_VAR(WXCONFIG, [Old name for WX_CONFIG, accepted for compatibility])
137AC_ARG_VAR(WX_CONFIG, [wxWidgets configuration script to use to build Aven])
138: ${WX_CONFIG="$WXCONFIG"}
[bd9730c]139
[ab27074]140AM_CONDITIONAL(WIN32, [test yes = "$mswindows"])
[559cd60]141AM_CONDITIONAL(MACOS, [test yes = "$macos"])
[b9bd864]142
[a3f519b]143if test -n "$WX_CONFIG" ; then
144  dnl WX_CONFIG specified - sanity check the value
[f665d6e]145  dnl don't check for --ldflags - older wx-config didn't do that
[7e2f708]146  if (exec >&5 2>&5;$WX_CONFIG --libs --cflags --cxxflags "$wx_libs";exit $?) then
[f665d6e]147    :
[b9bd864]148  else
[5297c43]149    AC_MSG_ERROR(['$WX_CONFIG --libs --cflags --cxxflags "$wx_libs"' does not work, bailing out])
[f665d6e]150  fi
151else
[559cd60]152  if test yes = "$macos" ; then
[f665d6e]153    wxdef=__WXMAC__
154  elif test yes = "$mswindows" ; then
155    wxdef=__WXMSW__
156  else
157    wxdef=__WXGTK__
158  fi
[5297c43]159  dnl See if wx-config exists and is for the correct version.
[034d9a57]160  dnl Fedora install wx3's wx-config as wx-config-3.0, so look for that in
161  dnl preference.
[6aac0b0]162  dnl Arch Linux uses wx-config-gtk3.
163  AC_PATH_PROGS(WX_CONFIG, [wx-config-3.0 wx-config-gtk3 wx-config])
[5297c43]164  if test -n "$WX_CONFIG" ; then
165    if (exec >&5 2>&5;$WX_CONFIG --cflags "$wx_libs"|grep -e -D"$wxdef";exit $?) then
166      :
167    else
168      AC_MSG_ERROR([wxWidgets not for the right toolkit.  Run ./configure WX_CONFIG=/path/to/wx-config])
[b9bd864]169    fi
[5297c43]170  else
[a3f519b]171    AC_MSG_ERROR([wxWidgets not found.  Run ./configure WX_CONFIG=/path/to/wx-config])
[b9bd864]172  fi
[5809313]173fi
[0fd7598]174
[5627cbb]175dnl Unless the user has explicitly specified a --unicode setting, prefer
176dnl --unicode=yes if we can get it.
177case $WX_CONFIG in
178  *--unicode=*) ;;
179  *)
[7e2f708]180    if (exec >&5 2>&5;$WX_CONFIG --unicode=yes --version "$wx_libs";exit $?) ; then
[5627cbb]181      WX_CONFIG="$WX_CONFIG --unicode=yes"
[7e2f708]182    elif (exec >&5 2>&5;$WX_CONFIG --unicode=no --version "$wx_libs";exit $?) ; then
[5627cbb]183      WX_CONFIG="$WX_CONFIG --unicode=no"
184    fi ;;
185esac
[7092fcb]186
[7e2f708]187WX_LIBS=`$WX_CONFIG --libs "$wx_libs"`
[f665d6e]188dnl Needed for nvidia drivers on linux (for some setups anyway).
189AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryVersion, [WX_LIBS="$WX_LIBS -lXxf86vm"], [], [$WX_LIBS])
[cccbf7f]190
191save_LIBS=$LIBS
192dnl Check if we need a library for OpenGL functions.  Usually it's the "GL"
193dnl library, but it's called opengl32 on Microsoft Windows).
194AC_SEARCH_LIBS([glPushMatrix], [GL opengl32], [WX_LIBS="$WX_LIBS $ac_cv_search_glPushMatrix"], [], [$WX_LIBS])
195dnl Check if we need a library for GLU functions.  Usually it's the "GLU"
196dnl library, but it's called glu32 on Microsoft Windows).
197AC_SEARCH_LIBS([gluProject], [GLU glu32], [WX_LIBS="$WX_LIBS $ac_cv_search_gluProject"], [], [$WX_LIBS])
198LIBS=$save_LIBS
199
[f665d6e]200AC_SUBST(WX_LIBS)
[559cd60]201dnl macOS has OpenGL/gl.h.
[ee63994]202AC_CHECK_HEADERS([GL/gl.h OpenGL/gl.h], [], [], [ ])
[559cd60]203dnl The Debian mingw-w64 packages lack GL/glext.h; macOS has OpenGL/glext.h.
[ee63994]204AC_CHECK_HEADERS([GL/glext.h OpenGL/glext.h], [], [], [#include <GL/gl.h>])
[9c0b089]205
[7e2f708]206WX_CFLAGS=`$WX_CONFIG --cflags "$wx_libs"`
[f665d6e]207AC_SUBST(WX_CFLAGS)
[7e2f708]208WX_CXXFLAGS=`$WX_CONFIG --cxxflags "$wx_libs"`
[f665d6e]209AC_SUBST(WX_CXXFLAGS)
210
[0177571]211AC_LANG([C])
[a5d615f]212save_CFLAGS=$CFLAGS
213CFLAGS="$CFLAGS $WX_CFLAGS"
214AC_CHECK_SIZEOF([wxChar], [], [
215  #include <wx/defs.h>
[631fa17]216  #include <wx/chartype.h>
[a5d615f]217])
218CFLAGS=$save_CFLAGS
[30b66b5]219
[40d1db36]220dnl Check for FFmpeg libraries.
221PKG_CHECK_MODULES([FFMPEG], [libavcodec libavformat libswscale libavutil], [
222  AC_DEFINE([WITH_FFMPEG], [1], [Use FFmpeg for movie export])
[f678705]223  save_CXXFLAGS=$CXXFLAGS
224  save_LIBS=$LIBS
[40d1db36]225  CFLAGS="$CFLAGS $FFMPEG_CFLAGS"
226  LIBS="$LIBS $FFMPEG_LIBS"
[f678705]227  AC_CHECK_FUNCS([av_guess_format avio_open avio_close avformat_write_header avcodec_encode_video2 avcodec_free_frame avcodec_open2 avformat_new_stream av_frame_alloc av_frame_free])
228  AC_CHECK_DECLS([AVMEDIA_TYPE_VIDEO], [], [], [#include <libavcodec/avcodec.h>])
229  AC_CHECK_DECLS([AV_CODEC_ID_NONE], [], [], [#include <libavcodec/avcodec.h>])
[ad04c87]230  AC_CHECK_DECLS([AV_PIX_FMT_RGB24], [], [], [#include <libavutil/pixfmt.h>])
[f678705]231  AC_CHECK_DECLS([AV_PIX_FMT_YUV420P], [], [], [#include <libavutil/pixfmt.h>])
232  CXXFLAGS=$save_CXXFLAGS
233  LIBS=$save_LIBS
[4909e7e1]234], [
235  dnl Build without movie export feature.
[9e516d0d]236])
[40d1db36]237AC_SUBST([FFMPEG_LIBS])
238AC_SUBST([FFMPEG_CFLAGS])
[c527c6e]239
[cf62988]240dnl Check for PROJ.
[ab24da7]241PKG_CHECK_MODULES([PROJ], [proj >= 6.2.0], [
[f678705]242], [
[0b5f43d]243  dnl pkg-config support in proj seems quite new, so probe directly if not
[ab24da7]244  dnl found.  We need proj_create_crs_to_crs_from_pj() which was added in
245  dnl 6.2.0.
246  AC_CHECK_LIB([proj], [proj_create_crs_to_crs_from_pj], [
[0b5f43d]247      PROJ_LIBS=-lproj
248      PROJ_CFLAGS=
249    ], [
[cf62988]250      AC_MSG_ERROR([PROJ required for coordinate transformations])
[0b5f43d]251    ])
[f678705]252])
[8c87227]253AC_SUBST([PROJ_LIBS])
[f678705]254AC_SUBST([PROJ_CFLAGS])
[63dc4eb]255
[51eab3b]256dnl Check for GDAL.
257PKG_CHECK_MODULES([GDAL], [gdal >= 2.3], [
[fd36290]258  AC_DEFINE([HAVE_GDAL], [1], [Define to 1 if you have the 'GDAL' library.])
[51eab3b]259], [
[6ad2f09]260  if test "$mswindows" = no ; then
261    AC_MSG_ERROR([GDAL required for geodata handling])
262  else
263    AC_MSG_WARN([GDAL required for geodata handling])
264  fi
[51eab3b]265])
266AC_SUBST([GDAL_LIBS])
267AC_SUBST([GDAL_CFLAGS])
268
[b6f16ea]269dnl Checks for header files.
[ac1beb0]270
[17f4e1e]271AC_CHECK_HEADERS(string.h)
[55302e3]272
[272c294]273AC_CHECK_FUNCS([popen hypot mmap])
[f66c708]274
[c0f9e1e]275dnl We don't access a FILE* from multiple threads and using the unlocked
276dnl versions has significantly less overhead, especially when reading/writing
277dnl byte-by-byte.  These are specified by POSIX:
[ce668fb]278AC_CHECK_FUNCS([getc_unlocked putc_unlocked putchar_unlocked])
[c0f9e1e]279dnl These are GNU extensions in glibc:
280AC_CHECK_FUNCS([feof_unlocked ferror_unlocked fread_unlocked fwrite_unlocked])
[0a85859]281
[c891a7e]282AC_CHECK_FUNCS([setenv unsetenv])
283
[725d3b1]284AC_CHECK_FUNCS([fmemopen])
285
[dba56bb]286dnl Microsoft-specific functions which support positional argument specifiers.
287AC_CHECK_FUNCS([_vfprintf_p _vsprintf_p])
288
[d1aefbc]289AC_PATH_PROG([SPHINX_BUILD], [sphinx-build], [$MISSING sphinx-build])
290AC_ARG_VAR([SPHINX_BUILD], [sphinx-build from python3-sphinx])
[788ed2e]291
[f15ee00]292AC_PATH_PROG([MSGFMT], [msgfmt], [$MISSING msgfmt])
293AC_ARG_VAR([MSGFMT], [msgfmt from gettext])
294
[71aa081]295AC_ARG_ENABLE([werror],
[d583ee2]296  [AS_HELP_STRING([--enable-werror], [enable treating compiler warnings as errors [default=no]])],
[71aa081]297  [case ${enableval} in
298    yes|no) ;;
299  *) AC_MSG_ERROR([bad value ${enableval} for --enable-werror]) ;;
300  esac],
301  [enable_werror=no])
302
303dnl Put -Werror or equivalent in its own make variable so that it can easily
304dnl be overridden by `make WERROR=` if needed during development (e.g. if
305dnl you want to get a full list of compile warnings to fix rather than
306dnl stopping at the first file with warnings).
307WERROR=
308AC_SUBST([WERROR])
309
[b4fe9fb]310dnl extra warning flags for building with GCC
[ab27074]311if test yes = "$GCC"; then
[71aa081]312  WERROR=-Werror
[ab27074]313  if test yes = "$cross_compiling"; then
[331b3aa]314dnl    AM_CFLAGS="$AM_CFLAGS -Werror -Wall -Wunused -Wpointer-arith\
315dnl      -Wwrite-strings -Wcast-align"
[75f9a82]316dnl -Wsign-compare causes a warning with the mingw FD_SET macro, so we have
317dnl to disable it for mingw builds.
[331b3aa]318    AM_CFLAGS="$AM_CFLAGS -Wall -Wunused -Wpointer-arith\
[1809849]319      -Wwrite-strings -Wcast-align"
[b960c63]320    AM_CXXFLAGS="$AM_CXXFLAGS -Wall -Wunused -Wpointer-arith\
[75f9a82]321      -Wwrite-strings -Wcast-align -Wno-sign-compare"
[d5bd3a7]322  else
[ab27074]323    AM_CFLAGS="$AM_CFLAGS -Wall -W -Wunused -Wshadow -Wpointer-arith\
324      -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wnested-externs\
[c70e8d2]325      -Wcast-align"
[41cfc8c]326    AM_CXXFLAGS="$AM_CXXFLAGS -Wall -W -Wunused -Wshadow -Wpointer-arith\
[0580c6a]327      -Wwrite-strings -Wcast-align"
[d5bd3a7]328  fi
[b9bd864]329  dnl too many complaints from headers, etc: -Wconversion
[96cc0ab]330fi
[b4fe9fb]331AC_SUBST(AM_CFLAGS)
332AC_SUBST(AM_CXXFLAGS)
[55302e3]333
[71aa081]334if test x$enable_werror != xyes; then
335  WERROR=
336fi
337
[8c0bfb4]338dnl See if large file support is available.  Survex is unlikely to need to
339dnl process files > 2GB in size, but LFS is also needed for stat() to work
340dnl on filing systems which return 64 bit inode values, such as CIFS mounts.
341AC_SYS_LARGEFILE
342
[5341d94]343AC_ARG_ENABLE(profiling,
344[  --enable-profiling Build binaries to generate profiling information],
[21fbe7d]345[case $enableval in
[984f49e]346  yes) AM_CXXFLAGS="$AM_CXXFLAGS -pg"
[b4fe9fb]347       AM_CFLAGS="$AM_CFLAGS -pg"
[5876fcb]348       AC_MSG_RESULT(building binaries to generate profiling information);;
[5341d94]349  no) ;;
[ab27074]350  *) AC_MSG_ERROR(bad value $enableval for --enable-profiling) ;;
[5341d94]351esac])
352
[5636835]353EXTRA_TEXT="AUTHORS COPYING NEWS TODO ChangeLog"
354AC_SUBST(EXTRA_TEXT)
355
[96c5d34]356AC_SUBST_FILE(DESC)
357DESC=desc.txt
358AC_SUBST_FILE(AVENDESC)
359AVENDESC=desc-aven.txt
360
[f665d6e]361dnl Don't define DATADIR if building for MS Windows - it won't be used, and
362dnl can conflict with the DATADIR typedef in objidl.h
[4d0204a]363if test no = "$mswindows"; then
364  AC_DEFINE_DIR(DATADIR, datadir, [Location of platform independent support files])
365fi
[18f4759]366
[e02a6a6]367AH_BOTTOM(
[c0f9e1e]368[/* Use _unlocked() variants of stdio functions where available, since they are
[e02a6a6]369 * faster, and we don't multithread file accesses.
370 */
371
[c0f9e1e]372#ifdef HAVE_FEOF_UNLOCKED
373# define FEOF(F) feof_unlocked(F)
374#else
375# define FEOF(F) feof(F)
376#endif
377
378#ifdef HAVE_FERROR_UNLOCKED
379# define FERROR(F) ferror_unlocked(F)
380#else
381# define FERROR(F) ferror(F)
382#endif
383
384#ifdef HAVE_FREAD_UNLOCKED
385# define FREAD(P, S, N, F) fread_unlocked(P, S, N, F)
386#else
387# define FREAD(P, S, N, F) fread(P, S, N, F)
388#endif
389
[87c9067]390/* If we call this FWRITE() then macos errors out on uses with:
391 * error: called object type 'int' is not a function or function pointer
392 * Unclear what's going on - a conditional `#undef FWRITE` before defining
393 * doesn't help.
394 */
[c0f9e1e]395#ifdef HAVE_FWRITE_UNLOCKED
[87c9067]396# define FWRITE_(P, S, N, F) fwrite_unlocked(P, S, N, F)
[c0f9e1e]397#else
[87c9067]398# define FWRITE_(P, S, N, F) fwrite(P, S, N, F)
[c0f9e1e]399#endif
400
[e02a6a6]401#ifdef HAVE_GETC_UNLOCKED
402# define GETC(F) getc_unlocked(F)
403#else
404# define GETC(F) getc(F)
405#endif
[c0f9e1e]406
[e02a6a6]407#ifdef HAVE_PUTC_UNLOCKED
408# define PUTC(C, F) putc_unlocked(C, F)
409#else
410# define PUTC(C, F) putc(C, F)
411#endif
[a17d22fc]412
[ce668fb]413#ifdef HAVE_PUTC_UNLOCKED
414# define PUTCHAR(C) putchar_unlocked(C)
415#else
416# define PUTCHAR(C) putchar(C)
417#endif
418
[a17d22fc]419#ifndef __cplusplus
420/* C23 added bool, false and true as keywords - let's emulate that and
421 * avoid every C file which uses these needing to include <stdbool.h>.
422 */
423# include <stdbool.h>
424#endif
[e02a6a6]425])
426
[f542bda]427AC_CONFIG_FILES([
428 Makefile src/Makefile doc/Makefile lib/Makefile lib/icons/Makefile
[09dfd18]429 lib/images/Makefile
[d1aefbc]430 tests/Makefile vim/Makefile survex.iss doc/index.htm
[df10c51]431 survex.spec lib/Info.plist
[f542bda]432 ])
433AC_OUTPUT
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