qwt: Update to work with Qt 5 or 6

[ashley-b]

Specify library name and version: qwt/6.2.0

This PR allows qwt to build with Qt5 or Qt6, resolving issue #16326 and #10744

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• I've read the contributing guidelines.
• I've used a recent Conan client version close to the currently deployed.
• I've tried at least one configuration locally with the conan-center hook activated.

[valgur]

Could you include this minor change in your PR as well, please? #21196

[ashley-b]

@valgur I can do that if you want, not sure of the best way to do that?

[valgur]

@valgur I can do that if you want, not sure of the best way to do that?

Thanks! You can simply copy the changed line and mention the other PR in the commit message for context info.

[ashley-b]

Waiting on #21676 to fix Windows Qt6 build

[ashley-b]

I'm just following up on this PR

[conan-center-bot]

Conan v1 pipeline ✔️

All green in build 8 (ffd72406bbad6dad61e812ca5b85181118fc7ba9):

• qwt/6.2.0:
  All packages built successfully! (All logs)

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The v2 pipeline failed. Please, review the errors and note this is required for pull requests to be merged. In case this recipe is still not ported to Conan 2.x, please, ping @conan-io/barbarians on the PR and we will help you.

Failure in build 8 (ffd72406bbad6dad61e812ca5b85181118fc7ba9):

• qwt/6.2.0:
  CI failed to create some packages (All logs)

  Logs for packageID e4bfac69e660d643318cba944da69409ddc53d6a:

  [settings]
  arch=x86_64
  build_type=Release
  compiler=gcc
  compiler.cppstd=17
  compiler.libcxx=libstdc++11
  compiler.version=11
  os=Linux
  [options]
  */*:shared=False
  

  [...]
      qwt/6.2.0#2b29cb883b6562ecbcbbfbc7419a77e7:e4bfac69e660d643318cba944da69409ddc53d6a - Build
      sqlite3/3.46.1#3af96a6e95bb5a1c183ca6ead71592cc:46fbaf6d13261d8e27269f7addcf948d9d8e7b59#de552f0de4c47034d8520612f8ff40b6 - Download (conan-center)
      util-linux-libuuid/2.39.2#339f80aea7e5cf507b5b9839a128909f:b647c43bfefae3f830561ca202b6cfd935b56205#7d1c19f47892fc2f2b18ea1d0b030095 - Download (conan-center)
      wayland/1.22.0#284b56bdbe57868770f46100784e3b4d:f8be1ca6cbd6997090bb03596e62d3eb351cfe64#3e640b890d32aad1e3ed2edd49e82e37 - Download (conan-center)
      xkbcommon/1.5.0#91e39b3619ef0d4f17ec09f303935208:577479e1204019b1f986be22caa9bd397eb31b88#44125354bab4e6d25d5932d1c375e9ec - Download (conan-center)
      xkeyboard-config/system#57dd5c08e72ab06bc2ee0e756c0a2c41:da39a3ee5e6b4b0d3255bfef95601890afd80709#0ba8627bd47edc3a501e8f0eb9a79e5e - Download (conan-center)
      xorg/system#98f82cb669e4ebc6b4d9d8a4f3f1faf4:da39a3ee5e6b4b0d3255bfef95601890afd80709#0ba8627bd47edc3a501e8f0eb9a79e5e - Download (conan-center)
      zlib/1.3.1#f52e03ae3d251dec704634230cd806a2:b647c43bfefae3f830561ca202b6cfd935b56205#6b307bbcbae23635c4006543ffdbf3ef - Download (conan-center)
      zstd/1.5.5#1f239731dc45147c7fc2f54bfbde73df:c1b14c3945d5adf1e5ae440c43c12f88117f2edc#5766258f0ea4ee0d0a66a93cffb8b93a - Download (conan-center)
  Build requirements
      autoconf/2.71#f9307992909d7fb3df459340f1932809:da39a3ee5e6b4b0d3255bfef95601890afd80709#5b77f70c17ad1741f5845d4e468a347e - Download (conan-center)
      automake/1.16.5#058bda3e21c36c9aa8425daf3c1faf50:9a4eb3c8701508aa9458b1a73d0633783ecc2270#9719e51a6a62041af6a63e00eef35434 - Download (conan-center)
      m4/1.4.19#b38ced39a01e31fef5435bc634461fd2:3593751651824fb813502c69c971267624ced41a#cd8019a4f9b70880d548f7cc26569604 - Download (conan-center)
      opengl/system#4df6fecde4084386beded3ed0e56e4ea:da39a3ee5e6b4b0d3255bfef95601890afd80709#0ba8627bd47edc3a501e8f0eb9a79e5e - Download (conan-center)
      qt/5.15.14#8e99c640555798c4c2b5dedfcff7c394:4c99b7425bb13c54fa9ab3327a5baa03fcde9240#8c0104ac09fbaf74e58e6e516a79ac8c - Download (conan-center)
      xkeyboard-config/system#57dd5c08e72ab06bc2ee0e756c0a2c41:da39a3ee5e6b4b0d3255bfef95601890afd80709#0ba8627bd47edc3a501e8f0eb9a79e5e - Download (conan-center)
      xorg/system#98f82cb669e4ebc6b4d9d8a4f3f1faf4:da39a3ee5e6b4b0d3255bfef95601890afd80709#0ba8627bd47edc3a501e8f0eb9a79e5e - Download (conan-center)
  Skipped binaries
      bison/3.8.2, brotli/1.1.0, bzip2/1.0.8, double-conversion/3.3.0, expat/2.6.3, flex/2.6.4, fontconfig/2.15.0, freetype/2.13.2, gnu-config/cci.20210814, gperf/3.1, icu/74.2, libffi/3.4.4, libiconv/1.17, libjpeg/9e, libmysqlclient/8.1.0, libpng/1.6.44, libpq/15.4, libtool/2.4.7, libxml2/2.13.4, lz4/1.9.4, md4c/0.4.8, meson/1.2.2, meson/1.3.0, meson/1.3.2, meson/1.4.0, ninja/1.12.1, odbc/2.3.11, openssl/3.3.2, pcre2/10.42, pkgconf/2.1.0, sqlite3/3.46.1, util-linux-libuuid/2.39.2, wayland-protocols/1.33, wayland/1.22.0, xkbcommon/1.5.0, zlib/1.3.1, zstd/1.5.5
  ERROR: Missing binary: pcre2/10.42:3ad2a8f0588fa84c2c7e638193c099d49b433df1
  
  pcre2/10.42: WARN: Can't find a 'pcre2/10.42' package binary '3ad2a8f0588fa84c2c7e638193c099d49b433df1' for the configuration:
  [settings]
  arch=x86_64
  build_type=Release
  compiler=gcc
  compiler.version=11
  os=Linux
  [options]
  build_pcre2_16=True
  build_pcre2_32=True
  build_pcre2_8=True
  build_pcre2grep=True
  fPIC=True
  grep_support_callout_fork=True
  link_size=2
  shared=False
  support_jit=False
  with_bzip2=True
  with_zlib=True
  [requires]
  bzip2/1.0.Z
  zlib/1.3.Z
  
  ERROR: Missing prebuilt package for 'pcre2/10.42'. You can try:
      - List all available packages using 'conan list "pcre2/10.42:*" -r=remote'
      - Explain missing binaries: replace 'conan install ...' with 'conan graph explain ...'
      - Try to build locally from sources using the '--build=pcre2/10.42' argument
  
  More Info at 'https://docs.conan.io/2/knowledge/faq.html#error-missing-prebuilt-package'
  

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[ashley-b]

Hi @AbrilRBS, Just requesting some help with this PR.
Far as I can tell its building correctly, but the Failed and Missing dependencies labels seam stuck

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[ashley-b]

not stale

[maksim-petukhov]

@ashley-b thanks for your PR! I encountered the same problem when compiling qwt with qt6 (as in #16326) and came up with a similar solution. My patch looks like this:

diff --git a/CMakeLists.txt b/CMakeLists.txt
index cc9158c..96a507d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,28 +7,6 @@ project(Qwt
   LANGUAGES CXX
 )
 
-set(CMAKE_CXX_STANDARD 11)
-set(CMAKE_CXX_STANDARD_REQUIRED TRUE)
-set(CMAKE_CXX_EXTENSIONS OFF)
-
-if(MSVC)
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4 /permissive-")
-else()
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wpedantic -Wcast-qual \
-    -Wcast-align -Wredundant-decls -Wformat -Wshadow -Woverloaded-virtual \
-    -fno-math-errno -funsafe-math-optimizations")
-  if(CMAKE_COMPILER_ID STREQUAL "GNU")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wlogical-op")
-  endif()
-  add_compile_definitions(QT_STRICT_ITERATORS)
-endif()
-
-include(CheckPIESupported)
-check_pie_supported(OUTPUT_VARIABLE PIE_MESSAGE LANGUAGES CXX)
-if(CMAKE_CXX_LINK_PIE_SUPPORTED)
-  set(CMAKE_POSITION_INDEPENDENT_CODE TRUE)
-endif()
-
 include(GNUInstallDirs)
 
 set(QWT_NAME_SUFFIX "" CACHE STRING "Qwt Name Suffix")

It also removes unneeded compiler flags which enable warnings (In my opinion these flags might break something on new compilers in the future) and removes CMAKE_POSITION_INDEPENDENT_CODE as it is controlled by fPIC option of the package. What do you think? Could you include these changes in the PR?