You should use it instead
ALLOW_EMPTY_${PN} = "1"
The header-only package is required during the build (for dependent
recipes) and for SDK, this is where -dev package would be used. But if you
create main empty package, it would be installed in the image, which is
basically useless.
Vyacheslav
On Thu, Oct 11, 2018 at 3:02 PM Bartosz Golaszewski <b...@bgdev.pl> wrote:
> czw., 11 paź 2018 o 11:35 Vyacheslav Yurkov <uvv.m...@gmail.com>
> napisał(a):
> >
> > Hi Bartosz,
> > As I learned quite recently, you have to do the following for
> header-only libraries:
> > RDEPENDS_${PN}-dev = ""
> > RRECOMMENDS_${PN}-dbg = "${PN}-dev (= ${EXTENDPKGV})"
> >
>
> Any hint on what it does exactly and why it's needed?
>
> Bart
>
> > Regards,
> > Vyacheslav
> >
> > On Thu, Oct 11, 2018 at 11:08 AM Bartosz Golaszewski <b...@bgdev.pl>
> wrote:
> >>
> >> From: Bartosz Golaszewski <bgolaszew...@baylibre.com>
> >>
> >> Add a recipe for the catch2 testing framework. There's a bug upstream
> >> which makes it impossible to build with gcc7 so include a patch.
> >>
> >> Signed-off-by: Bartosz Golaszewski <bgolaszew...@baylibre.com>
> >> ---
> >> .../0001-internal-fix-build-in-GCC-7.patch | 35 +++++++++++++++++++
> >> meta-oe/recipes-test/catch2/catch2_2.4.1.bb | 25 +++++++++++++
> >> 2 files changed, 60 insertions(+)
> >> create mode 100644
> meta-oe/recipes-test/catch2/catch2/0001-internal-fix-build-in-GCC-7.patch
> >> create mode 100644 meta-oe/recipes-test/catch2/catch2_2.4.1.bb
> >>
> >> diff --git
> a/meta-oe/recipes-test/catch2/catch2/0001-internal-fix-build-in-GCC-7.patch
> b/meta-oe/recipes-test/catch2/catch2/0001-internal-fix-build-in-GCC-7.patch
> >> new file mode 100644
> >> index 000000000..606398afa
> >> --- /dev/null
> >> +++
> b/meta-oe/recipes-test/catch2/catch2/0001-internal-fix-build-in-GCC-7.patch
> >> @@ -0,0 +1,35 @@
> >> +From 857bf7e83db330682a4c722d0b57be1e4481f4e2 Mon Sep 17 00:00:00 2001
> >> +From: Bartosz Golaszewski <bgolaszew...@baylibre.com>
> >> +Date: Thu, 11 Oct 2018 09:44:24 +0200
> >> +Subject: [PATCH] internal: fix build in GCC 7
> >> +
> >> +The following error is emitted by gcc 7:
> >> +
> >> +include/internal/catch_tostring.cpp:217:21: error: comparison is
> always true due to limited range of data type [-Werror=type-limits]
> >> +| } else if ('\0' <= value && value < ' ') {
> >> +| ~~~~~^~~~~~~~
> >> +| cc1plus: all warnings being treated as errors
> >> +
> >> +We can drop the first part of the if.
> >> +
> >> +Signed-off-by: Bartosz Golaszewski <bgolaszew...@baylibre.com>
> >> +---
> >> + include/internal/catch_tostring.cpp | 2 +-
> >> + 1 file changed, 1 insertion(+), 1 deletion(-)
> >> +
> >> +diff --git a/include/internal/catch_tostring.cpp
> b/include/internal/catch_tostring.cpp
> >> +index 4e0c027d..59cc8dec 100644
> >> +--- a/include/internal/catch_tostring.cpp
> >> ++++ b/include/internal/catch_tostring.cpp
> >> +@@ -214,7 +214,7 @@ std::string StringMaker<char>::convert(char value)
> {
> >> + return "'\\n'";
> >> + } else if (value == '\t') {
> >> + return "'\\t'";
> >> +- } else if ('\0' <= value && value < ' ') {
> >> ++ } else if (value < ' ') {
> >> + return ::Catch::Detail::stringify(static_cast<unsigned
> int>(value));
> >> + } else {
> >> + char chstr[] = "' '";
> >> +--
> >> +2.19.1
> >> +
> >> diff --git a/meta-oe/recipes-test/catch2/catch2_2.4.1.bb
> b/meta-oe/recipes-test/catch2/catch2_2.4.1.bb
> >> new file mode 100644
> >> index 000000000..ba14a362c
> >> --- /dev/null
> >> +++ b/meta-oe/recipes-test/catch2/catch2_2.4.1.bb
> >> @@ -0,0 +1,25 @@
> >> +DESCRIPTION = "A modern, C++-native, header-only, test framework for
> unit-tests, \
> >> +TDD and BDD - using C++11, C++14, C++17 and later."
> >> +AUTHOR = "Phil Nash, Martin Horenovsky and others"
> >> +HOMEPAGE = "https://github.com/catchorg/Catch2";
> >> +LICENSE = "BSL-1.0"
> >> +LIC_FILES_CHKSUM =
> "file://LICENSE.txt;md5=e4224ccaecb14d942c71d31bef20d78c"
> >> +
> >> +SRC_URI = "git://github.com/catchorg/Catch2.git \
> >> + file://0001-internal-fix-build-in-GCC-7.patch"
> >> +SRCREV = "9e1bdca4667295fcb16265eae00efa8423f07007"
> >> +
> >> +S = "${WORKDIR}/git"
> >> +
> >> +DEPENDS = "python-native"
> >> +
> >> +inherit cmake python3native
> >> +
> >> +# Header-only library
> >> +ALLOW_EMPTY_${PN} = "1"
> >> +
> >> +do_install_append() {
> >> + rm ${D}/usr/share/Catch2/lldbinit
> >> + rm ${D}/usr/share/Catch2/gdbinit
> >> + rmdir ${D}/usr/share/Catch2/
> >> +}
> >> --
> >> 2.19.1
> >>
> >> --
>
--
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