144 lines
3.9 KiB
Makefile
144 lines
3.9 KiB
Makefile
# $NetBSD: features-vars.mk,v 1.10 2007/11/06 22:48:15 rillig Exp $
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#
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# The platforms that are supported by pkgsrc differ in the amount of
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# functions they provide in the C library (libc). Functions that are
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# typically available on NetBSD are provided in the libnbcomat package.
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#
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# This file defines a set of "features" that some packages require.
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# Whenever a package makes use of them, it should list the features in
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# the USE_FEATURES variable. (It serves a similar purpose as USE_TOOLS.)
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#
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# The *.c files that use the features must be patched a little. When
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# there are missing features, the C preprocessor macro HAVE_NBCOMPAT_H
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# will be defined to 1. In this case, the headers from the nbcompat
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# directory must be included.
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#
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# === Example ===
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#
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# In the package Makefile:
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#
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# USE_FEATURES= err
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#
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# In the C files using the err*() or warn*() functions:
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#
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# #if defined(HAVE_NBCOMPAT_H)
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# #include <nbcompat/cdefs.h> /* needed for the other headers */
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# #include <nbcompat/err.h>
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# #else
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# #include <err.h>
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# #endif
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#
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# === Package-settable variables ===
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#
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# USE_FEATURES
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# Lists the system features required by the package.
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#
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# Possible:
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# * err: The functions err, verr, errx, verrx.
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# * warn: The functions warn, vwarn, warnx, vwarnx.
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# * fts_close, fts_open, fts_read, fts_set: Functions
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# for filesystem traversal.
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# * getopt_long: The GNU version of getopt.
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# * getprogname, setprogname
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# * glob
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# * regcomp
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# * snprintf, vsnprintf
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# * utimes
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# * nbcompat: All of the above.
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#
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# Default value: undefined
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#
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# === Variables defined by this file ===
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#
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# MISSING_FEATURES
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# The features listed in USE_FEATURES that are missing on the
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# current system. Also includes "inet6" if the system doesn't
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# support IPv6.
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#
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# Keywords: feature features
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#
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_VARGROUPS+= features
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_USER_VARS.features= # none
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_PKG_VARS.features= USE_FEATURES
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_SYS_VARS.features= MISSING_FEATURES
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MISSING_FEATURES= # empty
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#
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# Handle "inet6" feature specially -- we always add it to
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# MISSING_FEATURES if the operating system doesn't support IPv6,
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# regardless of whether or not "inet6" is a requested feature
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# in USE_FEATURES.
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#
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.if defined(_OPSYS_HAS_INET6) && !empty(_OPSYS_HAS_INET6:M[nN][oO])
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MISSING_FEATURES+= inet6
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.endif
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.for _feature_ in err warn
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. if defined(USE_FEATURES) && !empty(USE_FEATURES:M${_feature_})
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. if (${OPSYS} != NetBSD) && (${OPSYS} != FreeBSD) && (${OPSYS} != DragonFly)
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MISSING_FEATURES+= ${_feature_}
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. endif
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. endif
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.endfor
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.for _feature_ in fts_close fts_open fts_read fts_set
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. if defined(USE_FEATURES) && !empty(USE_FEATURES:M${_feature_})
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. if !exists(/usr/include/fts.h)
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MISSING_FEATURES+= ${_feature_}
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. endif
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. endif
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.endfor
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.for _feature_ in getopt_long
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. if defined(USE_FEATURES) && !empty(USE_FEATURES:M${_feature_})
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. if !exists(/usr/include/getopt.h)
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MISSING_FEATURES+= ${_feature_}
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. endif
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. endif
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.endfor
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.for _feature_ in getprogname setprogname
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. if defined(USE_FEATURES) && !empty(USE_FEATURES:M${_feature_})
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. if (${OPSYS} != NetBSD) && (${OPSYS} != FreeBSD) && (${OPSYS} != DragonFly)
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MISSING_FEATURES+= ${_feature_}
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. endif
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. endif
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.endfor
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.for _feature_ in glob
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. if defined(USE_FEATURES) && !empty(USE_FEATURES:M${_feature_})
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. if !exists(/usr/include/glob.h)
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MISSING_FEATURES+= ${_feature_}
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. endif
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. endif
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.endfor
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.for _feature_ in regcomp
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. if defined(USE_FEATURES) && !empty(USE_FEATURES:M${_feature_})
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. if !exists(/usr/include/regex.h)
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MISSING_FEATURES+= ${_feature_}
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. endif
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. endif
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.endfor
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.for _feature_ in snprintf vsnprintf
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. if defined(USE_FEATURES) && !empty(USE_FEATURES:M${_feature_})
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. if ${OPSYS} == "IRIX"
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MISSING_FEATURES+= ${_feature_}
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. endif
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. endif
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.endfor
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.for _feature_ in utimes
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. if defined(USE_FEATURES) && !empty(USE_FEATURES:M${_feature_})
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. if ${OPSYS} == "Interix"
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MISSING_FEATURES+= ${_feature_}
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. endif
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. endif
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.endfor
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.if defined(USE_FEATURES) && !empty(USE_FEATURES:Mnbcompat)
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MISSING_FEATURES+= nbcompat
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.endif
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