[OpenWrt-Devel] [PATCH] libpcap: build with cmake

Rosen Penev rosenp at gmail.com
Fri Oct 18 16:14:58 EDT 2019


On Fri, Oct 18, 2019 at 6:08 AM Yousong Zhou <yszhou4tech at gmail.com> wrote:
>
> CAN and CAN-USB support related symbols are now handled by general linux
> support, see [1]
>
> InstallDev skips .a file and adds .pc pkgconfig file.
>
> "-ffunction-sections -fdata-sections" were removed as they not help much
> for shared libraries
>
> The change should also fix the issue that current build can leave out
> pcap_strlcpy() implmentation when building with glibc, see [2]
>
> Size comparison before and after the change
>
>   -rw-r--r-- 1 yunion yunion 238042 Oct 18 11:42 ipkg-x86_64/libpcap/usr/lib/libpcap.so.1
>
>   lrwxrwxrwx 1 yunion yunion     16 Oct 18 13:03 ipkg-x86_64/libpcap/usr/lib/libpcap.so.1 -> libpcap.so.1.9.1
>   -rwxr-xr-x 1 yunion yunion 229867 Oct 18 13:03 ipkg-x86_64/libpcap/usr/lib/libpcap.so.1.9.1
>
> [1] On Linux, handle all CAN captures with pcap-linux.c, in cooked mode,
>     https://github.com/the-tcpdump-group/libpcap/commit/93ca5ff7030aaf1219e1de05ec89a68384bfc50b
> [2] https://github.com/openwrt/packages/issues/10270
>
> Signed-off-by: Yousong Zhou <yszhou4tech at gmail.com>
> ---
>  package/libs/libpcap/Makefile                 |  72 ++++----
>  .../patches/100-debian_shared_lib.patch       | 168 ------------------
>  .../102-makefile_disable_manpages.patch       |  77 --------
>  .../libpcap/patches/102-skip-manpages.patch   |  75 ++++++++
>  4 files changed, 105 insertions(+), 287 deletions(-)
>  delete mode 100644 package/libs/libpcap/patches/100-debian_shared_lib.patch
>  delete mode 100644 package/libs/libpcap/patches/102-makefile_disable_manpages.patch
>  create mode 100644 package/libs/libpcap/patches/102-skip-manpages.patch
>
> diff --git a/package/libs/libpcap/Makefile b/package/libs/libpcap/Makefile
> index fae955a54d..630a45d8b3 100644
> --- a/package/libs/libpcap/Makefile
> +++ b/package/libs/libpcap/Makefile
> @@ -9,22 +9,21 @@ include $(TOPDIR)/rules.mk
>
>  PKG_NAME:=libpcap
>  PKG_VERSION:=1.9.1
> -PKG_RELEASE:=1
> +PKG_RELEASE:=2
>
>  PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
>  PKG_SOURCE_URL:=http://www.us.tcpdump.org/release/ \
>          http://www.tcpdump.org/release/
>  PKG_HASH:=635237637c5b619bcceba91900666b64d56ecb7be63f298f601ec786ce087094
> -PKG_FIXUP:=patch-libtool
>
>  PKG_MAINTAINER:=Felix Fietkau <nbd at nbd.name>
>
> -PKG_INSTALL:=1
> +CMAKE_INSTALL:=1
>  PKG_BUILD_PARALLEL:=1
>  PKG_LICENSE:=BSD-3-Clause
>
>  include $(INCLUDE_DIR)/package.mk
> -include $(INCLUDE_DIR)/kernel.mk
> +include $(INCLUDE_DIR)/cmake.mk
>
>  define Package/libpcap
>    SECTION:=libs
> @@ -48,50 +47,39 @@ TARGET_CFLAGS += \
>         -ffunction-sections \
>         -fdata-sections
>
> -CONFIGURE_VARS += \
> -       ac_cv_linux_vers=$(LINUX_VERSION) \
> -       ac_cv_header_libusb_1_0_libusb_h=no
> -
> -ifeq ($(CONFIG_PCAP_HAS_NETFILTER),)
> -CONFIGURE_VARS += \
> -       ac_cv_netfilter_can_compile=no
> -endif
> -
> -CONFIGURE_ARGS += \
> -       --enable-shared \
> -       --disable-yydebug \
> -       --with-pcap=linux \
> -       --without-septel \
> -       --without-dag \
> -       --without-libnl \
> -       --without-snf \
> -       --disable-can \
> -       --disable-canusb \
> -       --disable-dbus \
> -       --disable-bluetooth
> -
> -ifeq ($(CONFIG_IPV6),y)
> -CONFIGURE_ARGS += \
> -       --enable-ipv6
> -endif
> -
> -MAKE_FLAGS += \
> -       CCOPT="$(TARGET_CFLAGS) -I$(BUILD_DIR)/linux/include"
> -
> -define Build/Configure
> -       $(call Build/Configure/Default)
> -       $(if $(CONFIG_PCAP_HAS_USB),,$(SED) '/^#define PCAP_SUPPORT_USB/D' $(PKG_BUILD_DIR)/config.h)
> -       $(if $(CONFIG_PCAP_HAS_USB),,$(SED) 's/pcap-usb-linux.c *//' $(PKG_BUILD_DIR)/Makefile)
> -       $(if $(CONFIG_PCAP_HAS_BT),,$(SED) '/^#define PCAP_SUPPORT_BT/D' $(PKG_BUILD_DIR)/config.h)
> -       $(if $(CONFIG_PCAP_HAS_BT),,$(SED) 's/pcap-bt-linux.c *//' $(PKG_BUILD_DIR)/Makefile)
> -endef
> +CMAKE_OPTIONS += \
> +       -DBUILD_SHARED_LIBS=on \
Usually ON and OFF are capitalized.
> +       -DBUILD_WITH_LIBNL=off \
> +
> +# grep 'option(DISABLE_' CMakeLists.txt | cut -f2 -d'(' | cut -f1 -d' ' | sort --unique
> +CMAKE_OPTIONS += \
> +       -DDISABLE_DAG=on \
> +       -DDISABLE_DBUS=on \
> +       -DDISABLE_NETMAP=on \
> +       -DDISABLE_RDMA=on \
> +       -DDISABLE_SEPTEL=on \
> +       -DDISABLE_SNF=on \
> +       -DDISABLE_TC=on \
> +
> +# Debugging options
> +CMAKE_OPTIONS += \
> +       -DBDEBUG=off \
> +       -DYYDEBUG=off \
> +
> +CMAKE_OPTIONS += $(if $(CONFIG_PCAP_HAS_USB)       ,,-DDISABLE_USB=on)
> +CMAKE_OPTIONS += $(if $(CONFIG_PCAP_HAS_BT)        ,,-DDISABLE_BLUETOOTH=on)
> +CMAKE_OPTIONS += $(if $(CONFIG_PCAP_HAS_NETFILTER) ,,-DPCAP_SUPPORT_NETFILTER=off)
> +
> +CMAKE_OPTIONS += $(if $(CONFIG_IPV6),-DINET6=on,-DINET6=off)
>
>  define Build/InstallDev
This whole section can be removed because of CMAKE_INSTALL. See:
https://github.com/openwrt/openwrt/blob/master/include/cmake.mk#L79
>         $(INSTALL_DIR) $(1)/usr/include
>         $(CP) $(PKG_INSTALL_DIR)/usr/include/pcap* $(1)/usr/include/
>
>         $(INSTALL_DIR) $(1)/usr/lib
> -       $(CP) $(PKG_INSTALL_DIR)/usr/lib/libpcap.{a,so*} $(1)/usr/lib/
> +       $(CP) $(PKG_INSTALL_DIR)/usr/lib/libpcap.so* $(1)/usr/lib/
> +       $(INSTALL_DIR) $(1)/usr/lib/pkgconfig
> +       $(CP) $(PKG_INSTALL_DIR)/usr/lib/pkgconfig/libpcap.pc $(1)/usr/lib/pkgconfig/
I would check the generated pkgconfig file to see if the file paths
are correct. Example of correct:

prefix=/usr
exec_prefix=/usr
libdir=${exec_prefix}/lib
includedir=${prefix}/include

Example of incorrect:

prefix=/usr
exec_prefix=/usr
libdir=/usr/lib
includedir=/usr/include
>  endef
>
>  define Package/libpcap/install
> diff --git a/package/libs/libpcap/patches/100-debian_shared_lib.patch b/package/libs/libpcap/patches/100-debian_shared_lib.patch
> deleted file mode 100644
> index 454490fbfa..0000000000
> --- a/package/libs/libpcap/patches/100-debian_shared_lib.patch
> +++ /dev/null
> @@ -1,168 +0,0 @@
> -Debian-specific modifications to the upstream Makefile.in to
> -build a shared library.
> -
> ---- a/Makefile.in
> -+++ b/Makefile.in
> -@@ -40,6 +40,13 @@ mandir = @mandir@
> - srcdir = @srcdir@
> - VPATH = @srcdir@
> -
> -+# some defines for shared library compilation
> -+LIBVERSION=1
> -+LIBNAME=pcap
> -+LIBRARY=lib$(LIBNAME).a
> -+SOLIBRARY=lib$(LIBNAME).so
> -+SHAREDLIB=$(SOLIBRARY).$(LIBVERSION)
> -+
> - #
> - # You shouldn't need to edit anything below.
> - #
> -@@ -69,7 +76,8 @@ INSTALL_RPCAPD=@INSTALL_RPCAPD@
> - EXTRA_NETWORK_LIBS=@EXTRA_NETWORK_LIBS@
> -
> - # Standard CFLAGS for building members of a shared library
> --FULL_CFLAGS = $(CCOPT) @V_LIB_CCOPT_FAT@ $(SHLIB_CCOPT) $(INCLS) $(DEFS) $(CFLAGS)
> -+FULL_CFLAGS = $(CCOPT) @V_LIB_CCOPT_FAT@ $(SHLIB_CCOPT) $(INCLS) $(DEFS) $(CFLAGS) $(CPPFLAGS)
> -+CFLAGS_SHARED = -shared -Wl,-soname,$(SHAREDLIB)
> -
> - INSTALL = @INSTALL@
> - INSTALL_PROGRAM = @INSTALL_PROGRAM@
> -@@ -84,7 +92,11 @@ YACC = @YACC@
> - # problem if you don't own the file but can write to the directory.
> - .c.o:
> -       @rm -f $@
> --      $(CC) $(FULL_CFLAGS) -c $(srcdir)/$*.c
> -+      $(CC) $(FULL_CFLAGS) -c -o $@ $(srcdir)/$*.c
> -+
> -+%_pic.o: %.c %.o
> -+      @rm -f $@
> -+      $(CC) -fPIC $(FULL_CFLAGS) -c -o $@ $(srcdir)/$*.c
> -
> - PSRC =        pcap- at V_PCAP@.c @USB_SRC@ @BT_SRC@ @BT_MONITOR_SRC@ @NETFILTER_SRC@ @DBUS_SRC@ @NETMAP_SRC@ @RDMA_SRC@
> - FSRC =  @V_FINDALLDEVS@
> -@@ -101,6 +113,7 @@ SRC =      $(PSRC) $(FSRC) $(CSRC) $(SSRC) $(
> - # We would like to say "OBJ = $(SRC:.c=.o)" but Ultrix's make cannot
> - # hack the extra indirection
> - OBJ = $(PSRC:.c=.o) $(FSRC:.c=.o) $(CSRC:.c=.o) $(SSRC:.c=.o) $(GENSRC:.c=.o) $(LIBOBJS)
> -+OBJ_PIC = $(PSRC:.c=_pic.o) $(FSRC:.c=_pic.o) $(CSRC:.c=_pic.o) $(SSRC:.c=_pic.o) $(GENSRC:.c=_pic.o)
> - PUBHDR = \
> -       pcap.h \
> -       pcap-bpf.h \
> -@@ -155,7 +168,7 @@ TAGFILES = \
> -
> - CLEANFILES = $(OBJ) libpcap.a libpcap.so.`cat $(srcdir)/VERSION` \
> -       $(PROG)-`cat $(srcdir)/VERSION`.tar.gz $(GENSRC) $(GENHDR) \
> --      lex.yy.c pcap-config libpcap.pc
> -+      lex.yy.c pcap-config libpcap.pc $(OBJ_PIC)
> -
> - MAN1 = pcap-config.1
> -
> -@@ -392,7 +405,7 @@ libpcap.a: $(OBJ)
> -       $(AR) rc $@ $(OBJ) $(ADDLARCHIVEOBJS)
> -       $(RANLIB) $@
> -
> --shared: libpcap.$(DYEXT)
> -+shared: $(SHAREDLIB)
> -
> - libpcap.so: $(OBJ)
> -       @rm -f $@
> -@@ -468,6 +481,12 @@ libpcap.shareda: $(OBJ)
> - #
> - libpcap.none:
> -
> -+$(SHAREDLIB): $(OBJ_PIC)
> -+      - at rm -f $@
> -+      - at rm -f $(SOLIBRARY)
> -+      $(CC) $(CFLAGS_SHARED) $(LDFLAGS) -o $(SHAREDLIB) $(OBJ_PIC) -lc $(LIBS)
> -+      ln -s $(SHAREDLIB) $(SOLIBRARY)
> -+
> - scanner.c: $(srcdir)/scanner.l
> -       $(LEX) -P pcap_ --header-file=scanner.h --nounput -o scanner.c $<
> - scanner.h: scanner.c
> -@@ -480,6 +499,9 @@ scanner.h: scanner.c
> - scanner.o: scanner.c grammar.h
> -       $(CC) $(FULL_CFLAGS) -c scanner.c
> -
> -+scanner_pic.o: scanner.c grammar.h
> -+      $(CC) -fPIC $(FULL_CFLAGS) -o $@ -c scanner.c
> -+
> - grammar.c: $(srcdir)/grammar.y
> -       $(YACC) -p pcap_ -o grammar.c -d $<
> - grammar.h: grammar.c
> -@@ -492,6 +514,9 @@ grammar.h: grammar.c
> - grammar.o: grammar.c scanner.h
> -       $(CC) $(FULL_CFLAGS) -c grammar.c
> -
> -+grammar_pic.o: grammar.c scanner.h
> -+      $(CC) -fPIC $(FULL_CFLAGS) -o $@ -c grammar.c
> -+
> - gencode.o: $(srcdir)/gencode.c grammar.h scanner.h
> -       $(CC) $(FULL_CFLAGS) -c $(srcdir)/gencode.c
> -
> -@@ -539,6 +564,9 @@ pcap-config: $(srcdir)/pcap-config.in ./
> -       mv $@.tmp $@
> -       chmod a+x $@
> -
> -+bpf_filter_pic.o: bpf_filter.c
> -+      $(CC) -fPIC $(FULL_CFLAGS) -c bpf_filter.c -o $@
> -+
> - #
> - # Remote pcap daemon.
> - #
> -@@ -632,14 +660,11 @@ install: install-shared install-archive
> -                   $(DESTDIR)$(mandir)/man at MAN_MISC_INFO@/`echo $$i | sed 's/.manmisc.in/. at MAN_MISC_INFO@/'`; done
> -
> - install-shared: install-shared-$(DYEXT)
> --install-shared-so: libpcap.so
> -+install-shared-so: $(SHAREDLIB)
> -       [ -d $(DESTDIR)$(libdir) ] || \
> -           (mkdir -p $(DESTDIR)$(libdir); chmod 755 $(DESTDIR)$(libdir))
> --      VER=`cat $(srcdir)/VERSION`; \
> --      MAJOR_VER=`sed 's/\([0-9][0-9]*\)\..*/\1/' $(srcdir)/VERSION`; \
> --      $(INSTALL_PROGRAM) libpcap.so.$$VER $(DESTDIR)$(libdir)/libpcap.so.$$VER; \
> --      ln -sf libpcap.so.$$VER $(DESTDIR)$(libdir)/libpcap.so.$$MAJOR_VER; \
> --      ln -sf libpcap.so.$$MAJOR_VER $(DESTDIR)$(libdir)/libpcap.so
> -+      $(INSTALL_DATA) $(SHAREDLIB) $(DESTDIR)$(libdir)/
> -+      ln -sf $(SHAREDLIB) $(DESTDIR)$(libdir)/$(SOLIBRARY)
> - install-shared-dylib: libpcap.dylib
> -       [ -d $(DESTDIR)$(libdir) ] || \
> -           (mkdir -p $(DESTDIR)$(libdir); chmod 755 $(DESTDIR)$(libdir))
> ---- a/aclocal.m4
> -+++ b/aclocal.m4
> -@@ -507,7 +507,7 @@ AC_DEFUN(AC_LBL_SHLIBS_INIT,
> -                       esac
> -                       ;;
> -                   esac
> --                  V_SHLIB_CCOPT="$V_SHLIB_CCOPT $PIC_OPT"
> -+                  V_SHLIB_CCOPT="$V_SHLIB_CCOPT"
> -                   V_SONAME_OPT="-Wl,-soname,"
> -                   V_RPATH_OPT="-Wl,-rpath,"
> -                   ;;
> -@@ -570,7 +570,7 @@ AC_DEFUN(AC_LBL_SHLIBS_INIT,
> -                   #
> -                   # "cc" is GCC.
> -                   #
> --                  V_SHLIB_CCOPT="$V_SHLIB_CCOPT -fpic"
> -+                  V_SHLIB_CCOPT="$V_SHLIB_CCOPT"
> -                   V_SHLIB_CMD="\$(CC)"
> -                   V_SHLIB_OPT="-shared"
> -                   V_SONAME_OPT="-Wl,-soname,"
> ---- a/pcap-config.in
> -+++ b/pcap-config.in
> -@@ -41,16 +41,6 @@ do
> -       esac
> -       shift
> - done
> --if [ "$V_RPATH_OPT" != "" ]
> --then
> --      #
> --      # If libdir isn't /usr/lib, add it to the run-time linker path.
> --      #
> --      if [ "$libdir" != "/usr/lib" ]
> --      then
> --              RPATH=$V_RPATH_OPT$libdir
> --      fi
> --fi
> - if [ "$static" = 1 ]
> - then
> -       #
> diff --git a/package/libs/libpcap/patches/102-makefile_disable_manpages.patch b/package/libs/libpcap/patches/102-makefile_disable_manpages.patch
> deleted file mode 100644
> index bd1702be0f..0000000000
> --- a/package/libs/libpcap/patches/102-makefile_disable_manpages.patch
> +++ /dev/null
> @@ -1,77 +0,0 @@
> ---- a/Makefile.in
> -+++ b/Makefile.in
> -@@ -588,14 +588,6 @@ install: install-shared install-archive
> -           (mkdir -p $(DESTDIR)$(includedir); chmod 755 $(DESTDIR)$(includedir))
> -       [ -d $(DESTDIR)$(includedir)/pcap ] || \
> -           (mkdir -p $(DESTDIR)$(includedir)/pcap; chmod 755 $(DESTDIR)$(includedir)/pcap)
> --      [ -d $(DESTDIR)$(mandir)/man1 ] || \
> --          (mkdir -p $(DESTDIR)$(mandir)/man1; chmod 755 $(DESTDIR)$(mandir)/man1)
> --      [ -d $(DESTDIR)$(mandir)/man3 ] || \
> --          (mkdir -p $(DESTDIR)$(mandir)/man3; chmod 755 $(DESTDIR)$(mandir)/man3)
> --      [ -d $(DESTDIR)$(mandir)/man at MAN_FILE_FORMATS@ ] || \
> --          (mkdir -p $(DESTDIR)$(mandir)/man at MAN_FILE_FORMATS@; chmod 755 $(DESTDIR)$(mandir)/man at MAN_FILE_FORMATS@)
> --      [ -d $(DESTDIR)$(mandir)/man at MAN_MISC_INFO@ ] || \
> --          (mkdir -p $(DESTDIR)$(mandir)/man at MAN_MISC_INFO@; chmod 755 $(DESTDIR)$(mandir)/man at MAN_MISC_INFO@)
> -       for i in $(PUBHDR); do \
> -               $(INSTALL_DATA) $(srcdir)/$$i \
> -                   $(DESTDIR)$(includedir)/$$i; done
> -@@ -605,59 +597,6 @@ install: install-shared install-archive
> -       [ -d $(DESTDIR)$(libdir)/pkgconfig ] || \
> -           (mkdir -p $(DESTDIR)$(libdir)/pkgconfig; chmod 755 $(DESTDIR)$(libdir)/pkgconfig)
> -       $(INSTALL_DATA) libpcap.pc $(DESTDIR)$(libdir)/pkgconfig/libpcap.pc
> --      for i in $(MAN1); do \
> --              $(INSTALL_DATA) $(srcdir)/$$i \
> --                  $(DESTDIR)$(mandir)/man1/$$i; done
> --      for i in $(MAN3PCAP_NOEXPAND); do \
> --              $(INSTALL_DATA) $(srcdir)/$$i \
> --                  $(DESTDIR)$(mandir)/man3/$$i; done
> --      for i in $(MAN3PCAP_EXPAND:.in=); do \
> --              $(INSTALL_DATA) $$i \
> --                  $(DESTDIR)$(mandir)/man3/$$i; done
> --      (cd $(DESTDIR)$(mandir)/man3 && \
> --      rm -f pcap_datalink_val_to_description.3pcap && \
> --      $(LN_S) pcap_datalink_val_to_name.3pcap \
> --               pcap_datalink_val_to_description.3pcap && \
> --      rm -f pcap_datalink_val_to_description_or_dlt.3pcap && \
> --      $(LN_S) pcap_datalink_val_to_name.3pcap \
> --               pcap_datalink_val_to_description_or_dlt.3pcap && \
> --      rm -f pcap_dump_fopen.3pcap && \
> --      $(LN_S) pcap_dump_open.3pcap pcap_dump_fopen.3pcap && \
> --      rm -f pcap_freealldevs.3pcap && \
> --      $(LN_S) pcap_findalldevs.3pcap pcap_freealldevs.3pcap && \
> --      rm -f pcap_perror.3pcap && \
> --      $(LN_S) pcap_geterr.3pcap pcap_perror.3pcap && \
> --      rm -f pcap_sendpacket.3pcap && \
> --      $(LN_S) pcap_inject.3pcap pcap_sendpacket.3pcap && \
> --      rm -f pcap_free_datalinks.3pcap && \
> --      $(LN_S) pcap_list_datalinks.3pcap pcap_free_datalinks.3pcap && \
> --      rm -f pcap_free_tstamp_types.3pcap && \
> --      $(LN_S) pcap_list_tstamp_types.3pcap pcap_free_tstamp_types.3pcap && \
> --      rm -f pcap_dispatch.3pcap && \
> --      $(LN_S) pcap_loop.3pcap pcap_dispatch.3pcap && \
> --      rm -f pcap_minor_version.3pcap && \
> --      $(LN_S) pcap_major_version.3pcap pcap_minor_version.3pcap && \
> --      rm -f pcap_next.3pcap && \
> --      $(LN_S) pcap_next_ex.3pcap pcap_next.3pcap && \
> --      rm -f pcap_open_dead_with_tstamp_precision.3pcap && \
> --      $(LN_S) pcap_open_dead.3pcap \
> --               pcap_open_dead_with_tstamp_precision.3pcap && \
> --      rm -f pcap_open_offline_with_tstamp_precision.3pcap && \
> --      $(LN_S) pcap_open_offline.3pcap pcap_open_offline_with_tstamp_precision.3pcap && \
> --      rm -f pcap_fopen_offline.3pcap && \
> --      $(LN_S) pcap_open_offline.3pcap pcap_fopen_offline.3pcap && \
> --      rm -f pcap_fopen_offline_with_tstamp_precision.3pcap && \
> --      $(LN_S) pcap_open_offline.3pcap pcap_fopen_offline_with_tstamp_precision.3pcap && \
> --      rm -f pcap_tstamp_type_val_to_description.3pcap && \
> --      $(LN_S) pcap_tstamp_type_val_to_name.3pcap pcap_tstamp_type_val_to_description.3pcap && \
> --      rm -f pcap_getnonblock.3pcap && \
> --      $(LN_S) pcap_setnonblock.3pcap pcap_getnonblock.3pcap)
> --      for i in $(MANFILE); do \
> --              $(INSTALL_DATA) `echo $$i | sed 's/.manfile.in/.manfile/'` \
> --                  $(DESTDIR)$(mandir)/man at MAN_FILE_FORMATS@/`echo $$i | sed 's/.manfile.in/. at MAN_FILE_FORMATS@/'`; done
> --      for i in $(MANMISC); do \
> --              $(INSTALL_DATA) `echo $$i | sed 's/.manmisc.in/.manmisc/'` \
> --                  $(DESTDIR)$(mandir)/man at MAN_MISC_INFO@/`echo $$i | sed 's/.manmisc.in/. at MAN_MISC_INFO@/'`; done
> -
> - install-shared: install-shared-$(DYEXT)
> - install-shared-so: $(SHAREDLIB)
> diff --git a/package/libs/libpcap/patches/102-skip-manpages.patch b/package/libs/libpcap/patches/102-skip-manpages.patch
> new file mode 100644
> index 0000000000..28f572c913
> --- /dev/null
> +++ b/package/libs/libpcap/patches/102-skip-manpages.patch
> @@ -0,0 +1,75 @@
> +From f172e36e436d714f4def1439b13efd147a6a8411 Mon Sep 17 00:00:00 2001
> +From: Yousong Zhou <yszhou4tech at gmail.com>
> +Date: Fri, 18 Oct 2019 12:43:22 +0000
> +Subject: [PATCH] skip manpages
> +
> +---
> + CMakeLists.txt | 55 --------------------------------------------------
> + 1 file changed, 55 deletions(-)
> +
> +diff --git a/CMakeLists.txt b/CMakeLists.txt
> +index 55b93f14..acf1a904 100644
> +--- a/CMakeLists.txt
> ++++ b/CMakeLists.txt
> +@@ -2397,61 +2397,6 @@ if(NOT MSVC)
> +     configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libpcap.pc.in ${CMAKE_CURRENT_BINARY_DIR}/libpcap.pc @ONLY)
> +     install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/pcap-config DESTINATION bin)
> +     install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpcap.pc DESTINATION lib/pkgconfig)
> +-
> +-    #
> +-    # Man pages.
> +-    #
> +-    # For each section of the manual for which we have man pages
> +-    # that require macro expansion, do the expansion.
> +-    #
> +-    set(MAN1 "")
> +-    foreach(MANPAGE ${MAN1_NOEXPAND})
> +-        set(MAN1 ${MAN1} ${CMAKE_CURRENT_SOURCE_DIR}/${MANPAGE})
> +-    endforeach(MANPAGE)
> +-    install(FILES ${MAN1} DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
> +-
> +-    set(MAN3PCAP "")
> +-    foreach(MANPAGE ${MAN3PCAP_NOEXPAND})
> +-        set(MAN3PCAP ${MAN3PCAP} ${CMAKE_CURRENT_SOURCE_DIR}/${MANPAGE})
> +-    endforeach(MANPAGE)
> +-    foreach(TEMPLATE_MANPAGE ${MAN3PCAP_EXPAND})
> +-        string(REPLACE ".in" "" MANPAGE ${TEMPLATE_MANPAGE})
> +-        configure_file(${CMAKE_CURRENT_SOURCE_DIR}/${TEMPLATE_MANPAGE} ${CMAKE_CURRENT_BINARY_DIR}/${MANPAGE} @ONLY)
> +-        set(MAN3PCAP ${MAN3PCAP} ${CMAKE_CURRENT_BINARY_DIR}/${MANPAGE})
> +-    endforeach(TEMPLATE_MANPAGE)
> +-    install(FILES ${MAN3PCAP} DESTINATION ${CMAKE_INSTALL_MANDIR}/man3)
> +-    install_manpage_symlink(pcap_datalink_val_to_name.3pcap pcap_datalink_val_to_description.3pcap ${CMAKE_INSTALL_MANDIR}/man3)
> +-    install_manpage_symlink(pcap_dump_open.3pcap pcap_dump_fopen.3pcap ${CMAKE_INSTALL_MANDIR}/man3)
> +-    install_manpage_symlink(pcap_findalldevs.3pcap pcap_freealldevs.3pcap ${CMAKE_INSTALL_MANDIR}/man3)
> +-    install_manpage_symlink(pcap_geterr.3pcap pcap_perror.3pcap ${CMAKE_INSTALL_MANDIR}/man3)
> +-    install_manpage_symlink(pcap_inject.3pcap pcap_sendpacket.3pcap ${CMAKE_INSTALL_MANDIR}/man3)
> +-    install_manpage_symlink(pcap_list_datalinks.3pcap pcap_free_datalinks.3pcap ${CMAKE_INSTALL_MANDIR}/man3)
> +-    install_manpage_symlink(pcap_list_tstamp_types.3pcap pcap_free_tstamp_types.3pcap ${CMAKE_INSTALL_MANDIR}/man3)
> +-    install_manpage_symlink(pcap_loop.3pcap pcap_dispatch.3pcap ${CMAKE_INSTALL_MANDIR}/man3)
> +-    install_manpage_symlink(pcap_major_version.3pcap pcap_minor_version.3pcap ${CMAKE_INSTALL_MANDIR}/man3)
> +-    install_manpage_symlink(pcap_next_ex.3pcap pcap_next.3pcap ${CMAKE_INSTALL_MANDIR}/man3)
> +-    install_manpage_symlink(pcap_open_dead.3pcap pcap_open_dead_with_tstamp_precision.3pcap ${CMAKE_INSTALL_MANDIR}/man3)
> +-    install_manpage_symlink(pcap_open_offline.3pcap pcap_open_offline_with_tstamp_precision.3pcap ${CMAKE_INSTALL_MANDIR}/man3)
> +-    install_manpage_symlink(pcap_open_offline.3pcap pcap_fopen_offline.3pcap ${CMAKE_INSTALL_MANDIR}/man3)
> +-    install_manpage_symlink(pcap_open_offline.3pcap pcap_fopen_offline_with_tstamp_precision.3pcap ${CMAKE_INSTALL_MANDIR}/man3)
> +-    install_manpage_symlink(pcap_tstamp_type_val_to_name.3pcap pcap_tstamp_type_val_to_description.3pcap ${CMAKE_INSTALL_MANDIR}/man3)
> +-    install_manpage_symlink(pcap_setnonblock.3pcap pcap_getnonblock.3pcap ${CMAKE_INSTALL_MANDIR}/man3)
> +-
> +-    set(MANFILE "")
> +-    foreach(TEMPLATE_MANPAGE ${MANFILE_EXPAND})
> +-        string(REPLACE ".manfile.in" ".${MAN_FILE_FORMATS}" MANPAGE ${TEMPLATE_MANPAGE})
> +-        configure_file(${CMAKE_CURRENT_SOURCE_DIR}/${TEMPLATE_MANPAGE} ${CMAKE_CURRENT_BINARY_DIR}/${MANPAGE} @ONLY)
> +-        set(MANFILE ${MANFILE} ${CMAKE_CURRENT_BINARY_DIR}/${MANPAGE})
> +-    endforeach(TEMPLATE_MANPAGE)
> +-    install(FILES ${MANFILE} DESTINATION ${CMAKE_INSTALL_MANDIR}/man${MAN_FILE_FORMATS})
> +-
> +-    set(MANMISC "")
> +-    foreach(TEMPLATE_MANPAGE ${MANMISC_EXPAND})
> +-        string(REPLACE ".manmisc.in" ".${MAN_MISC_INFO}" MANPAGE ${TEMPLATE_MANPAGE})
> +-        configure_file(${CMAKE_CURRENT_SOURCE_DIR}/${TEMPLATE_MANPAGE} ${CMAKE_CURRENT_BINARY_DIR}/${MANPAGE} @ONLY)
> +-        set(MANMISC ${MANMISC} ${CMAKE_CURRENT_BINARY_DIR}/${MANPAGE})
> +-    endforeach(TEMPLATE_MANPAGE)
> +-    install(FILES ${MANMISC} DESTINATION ${CMAKE_INSTALL_MANDIR}/man${MAN_MISC_INFO})
> + endif(NOT MSVC)
> +
> + # uninstall target
>
> _______________________________________________
> openwrt-devel mailing list
> openwrt-devel at lists.openwrt.org
> https://lists.openwrt.org/mailman/listinfo/openwrt-devel

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