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 as ctpp2-st is not existing at all is those
usecases, so we cannot try to link with ctpp2-st when compiling statically.

We could fix, the ctpp2 lib search to search ctpp2 and ctpp2-st when
compiling statically but it seems to be a lot of work for nothing
as ctpp2-st is not used at all in our usecases.

meson.build

@@ -12,23 +12,17 @@ z_dep = dependency('zlib')
 # But there is no pkg-config file for ctpp2. Once one exists, no need to
 # declare the dependency here
 ctpp2_prefix_install = get_option('ctpp2-install-prefix')
-if get_option('default_library') == 'static'
-    libname = 'ctpp2-st'
-else
-    libname = 'ctpp2'
-endif
-
 find_library_in_compiler = meson.version().version_compare('>=0.31.0')
 if ctpp2_prefix_install == ''
   if not compiler.has_header('ctpp2/CTPP2Logger.hpp')
     error('ctpp2/CTPP2Logger.hppnot found')
   endif
   if find_library_in_compiler
-    ctpp2_lib = compiler.find_library(libname)
+    ctpp2_lib = compiler.find_library('ctpp2')
   else
-    ctpp2_lib = find_library(libname)
+    ctpp2_lib = find_library('ctpp2')
   endif
-  link_args = ['-l'+libname]
+  link_args = ['-lctpp2']
   if meson.is_cross_build()
     if host_machine.system() == 'windows'
       link_args += ['-liconv']
@@ -46,8 +40,8 @@ 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)
-  link_args = ['-L'+ctpp2_lib_path, '-l'+libname]
+  ctpp2_lib = compiler.find_library('ctpp2', dirs:ctpp2_lib_path)
+  link_args = ['-L'+ctpp2_lib_path, '-lctpp2']
   if meson.is_cross_build()
     if host_machine.system() == 'windows'
       link_args += ['-liconv']