Do not try to link with ctpp2-st.

ctpp2-st is not a standard name, all other projects use the same base name
for dynamic and static libs.

Debian already patch the lib name in the ctpp2 package.
As we also patch it in kiwix-build, we can ignore ctpp2-st and always
try to link on ctpp2.

This is even necessary if we use the ctpp2-install-prefix. As we ctpp2 is
in a custom directory, meson fails in the foreach loop as it cannot find
ctpp2.
We could fix, the ctpp2 lib search to also search ctpp2-st in standard
directory AND the custom one but it seems to be a lot of work for nothing
as ctpp2-st is not used at all in our usecases.

meson.build

@@ -10,28 +10,17 @@ libzim_dep = dependency('libzim')
 pugixml_dep = dependency('pugixml')
 
 find_library_in_compiler = meson.version().version_compare('>=0.31.0')
-
-libname = ''
-libnames = ['ctpp2', 'ctpp2-st']
-foreach tmplibname : libnames
-  required = tmplibname == libnames[-1]
-  if find_library_in_compiler
-    found = libname == '' and compiler.find_library(tmplibname, required: required).found()
-  else
-    found = libname == '' and find_library(tmplibname, required: required).found()
-  endif
-  if found
-    libname = tmplibname
-  endif
-endforeach
-
 ctpp2_prefix_install = get_option('ctpp2-install-prefix')
 if ctpp2_prefix_install == ''
   if not compiler.has_header('ctpp2/CTPP2Logger.hpp')
     error('ctpp2/CTPP2Logger.hppnot found')
   endif
-
+  if find_library_in_compiler
-  link_args = ['-l'+libname]
+    ctpp2_lib = compiler.find_library('ctpp2')
+  else
+    ctpp2_lib = find_library('ctpp2')
+  endif
+  link_args = ['-lctpp2']
   if meson.is_cross_build()
     if host_machine.system() == 'windows'
       link_args += ['-liconv']
@@ -49,8 +38,8 @@ else
   endif
   ctpp2_include_path = include_directories(ctpp2_include_path, is_system:true)
   ctpp2_lib_path = ctpp2_prefix_install+'/lib'
-  ctpp2_lib = compiler.find_library(libname, dirs:ctpp2_lib_path)
+  ctpp2_lib = compiler.find_library('ctpp2', dirs:ctpp2_lib_path)
-  link_args = ['-L'+ctpp2_lib_path, '-l'+libname]
+  link_args = ['-L'+ctpp2_lib_path, '-lctpp2']
   if meson.is_cross_build()
     if host_machine.system() == 'windows'
       link_args += ['-liconv']