108 lines
3.2 KiB
Makefile
108 lines
3.2 KiB
Makefile
# $NetBSD: dlopen.builtin.mk,v 1.28 2024/01/13 20:26:47 riastradh Exp $
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BUILTIN_PKG:= dl
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BUILTIN_FIND_LIBS:= dl
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BUILTIN_FIND_HEADERS_VAR:= H_DL
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BUILTIN_FIND_HEADERS.H_DL= dlfcn.h
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.include "../../mk/buildlink3/bsd.builtin.mk"
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###
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### Determine if there is a built-in implementation of the package and
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### set IS_BUILTIN.<pkg> appropriately ("yes" or "no").
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###
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.if !defined(IS_BUILTIN.dl)
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IS_BUILTIN.dl= no
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. if empty(H_DL:M${LOCALBASE}/*) && exists(${TOOLS_CROSS_DESTDIR}${H_DL})
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IS_BUILTIN.dl= yes
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. endif
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.endif
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MAKEVARS+= IS_BUILTIN.dl
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###
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### Determine whether we should use the built-in implementation if it
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### exists, and set USE_BUILTIN.<pkg> appropriate ("yes" or "no").
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###
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#
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# We ignore the value of PREFER_PKGSRC and PREFER_NATIVE because for every
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# platform (unless overridden in the platform file), we can only use the
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# built-in dynamic linker functions.
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#
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.if !defined(USE_BUILTIN.dl)
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USE_BUILTIN.dl= ${IS_BUILTIN.dl}
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.endif
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MAKEVARS+= USE_BUILTIN.dl
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# The following platforms require pthreads to be linked into the
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# application if it uses dlopen() or else the applications will core
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# dump when they dlopen a shared module that _is_ linked with pthread
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# support.
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# It is not required for NetBSD>=5 if just linked with pthread or using
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# pthread_mutex_*(), but need if using pthread_create() / pthread_join().
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#
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_BLNK_DLOPEN_REQUIRE_PTHREAD_PLATFORMS= \
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NetBSD-2.[0-9]_*-* \
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NetBSD-2.[0-9]-* NetBSD-2.[0-9].[0-9]*-* \
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NetBSD-2.[0-8][0-9]*-* NetBSD-2.9[0-8]*-* \
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NetBSD-2.99.[0-9]-* NetBSD-2.99.10-* \
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NetBSD-[3-9]*-* \
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NetBSD-[1-9][0-9]*-* \
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OpenBSD-*-*
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.if !defined(_BLNK_DLOPEN_REQUIRE_PTHREADS)
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_BLNK_DLOPEN_REQUIRE_PTHREADS?= no
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. for _pattern_ in ${_BLNK_DLOPEN_REQUIRE_PTHREAD_PLATFORMS}
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. if !empty(MACHINE_PLATFORM:M${_pattern_})
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. if !empty(PREFER_NATIVE_PTHREADS:M[yY][eE][sS])
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_BLNK_DLOPEN_REQUIRE_PTHREADS= yes
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. endif
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. endif
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. endfor
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.endif
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MAKEVARS+= _BLNK_DLOPEN_REQUIRE_PTHREADS
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#
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# DLOPEN_REQUIRE_PTHREADS is a user- and package-settable yes/no variable
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# whose value decides whether pthread.buildlink3.mk is automatically
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# included or not. Its default value depends on whether native
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# pthreads exist.
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#
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.if defined(DLOPEN_REQUIRE_PTHREADS)
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_BLNK_DLOPEN_REQUIRE_PTHREADS:= ${DLOPEN_REQUIRE_PTHREADS}
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.else
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DLOPEN_REQUIRE_PTHREADS= ${_BLNK_DLOPEN_REQUIRE_PTHREADS}
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.endif
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###
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### The section below only applies if we are not including this file
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### solely to determine whether a built-in implementation exists.
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###
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CHECK_BUILTIN.dl?= no
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.if !empty(CHECK_BUILTIN.dl:M[nN][oO])
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. if !empty(USE_BUILTIN.dl:M[yY][eE][sS])
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. if empty(H_DL:M__nonexistent__)
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. if !empty(H_DL:M/usr/*)
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BUILDLINK_PREFIX.dl= /usr
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. else
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BUILDLINK_PREFIX.dl= # empty
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. endif
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. endif
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. if !empty(BUILTIN_LIB_FOUND.dl:M[yY][eE][sS])
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#
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# No need to add this to BUILDLINK_LIBS.dl since most GNU configure
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# scripts already check for -ldl themselves.
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#
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BUILDLINK_LDADD.dl= -ldl
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. endif
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. if !empty(_BLNK_DLOPEN_REQUIRE_PTHREADS:M[yY][eE][sS])
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. include "../../mk/pthread.buildlink3.mk"
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. include "../../mk/pthread.builtin.mk"
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BUILDLINK_CFLAGS.dl+= ${PTHREAD_CFLAGS}
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BUILDLINK_LDFLAGS.dl+= ${PTHREAD_LDFLAGS}
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BUILDLINK_LIBS.dl+= ${PTHREAD_LIBS}
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. endif
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. endif
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.endif # CHECK_BUILTIN.dl
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