rework mpfr handling.

contrib/crossrpms/gcc/gccnewlib.add

@@ -8,8 +8,6 @@
 %define newlib_version		@NEWLIB_VERS@
 %endif
 
-%define mpfr_version	2.3.1
-
 Name:         	@rpmprefix@@tool_target@-gcc
 Summary:      	@tool_target@ gcc
 
@@ -25,20 +23,59 @@ BuildRoot:	%{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 BuildRequires:  %{_host_rpmprefix}gcc
 
 %if "%{gcc_version}" >= "4.3.0"
-BuildRequires:  gmp-devel >= 4.1
+%define _gmp_minvers		4.1
+%else
+%if "%{gcc_version}" >= "4.2.0"
+%if %build_f95
+%define _gmp_minvers		4.1
+%endif
+%endif
+%endif
+
+%if %{defined _gmp_minvers}
+BuildRequires: gmp-devel >= %{_gmp_minvers}
 %if "%{_build}" != "%{_host}"
-BuildRequires:  %{_host_rpmprefix}gmp-devel
+BuildRequires:  %{_host_rpmprefix}gmp-devel >= %{_gmp_minvers}
-BuildRequires:  %{_host_rpmprefix}mpfr-devel
 %endif
-%if 0%{?fedora} >= 8
-BuildRequires:  mpfr-devel >= 2.3.0
 %endif
-%if "%{?suse}" > "10.3"
+
-BuildRequires:  mpfr-devel >= 2.3.0
+
+%if "%{gcc_version}" >= "4.4.0"
+%define _mpfr_minvers	2.3.2
+%define mpfr_version	2.4.1
+%else
+%if "%{gcc_version}" >= "4.3.0"
+%define _mpfr_minvers	2.3.1
+%define mpfr_version	2.3.2
+%else
+%if "%{gcc_version}" >= "4.2.0"
+%if %build_f95
+%define _mpfr_minvers	2.2.1
+%define mpfr_version	2.3.2
+%endif
+%endif
+%endif
+%endif
+
+%if %{defined _mpfr_minvers}
+%{?suse10_3:%global mpfr_provided 2.2.1}
+%{?fc9:%global mpfr_provided 2.3.1}
+%{?fc10:%global mpfr_provided 2.3.2}
+%{?fc11:%global mpfr_provided 2.4.1}
+
+%if %{defined mpfr_provided}
+%if "%{mpfr_provided}" < "%{_mpfr_minvers}"
+%define _build_mpfr 1
+%else
+BuildRequires: mpfr-devel >= %{_mpfr_minvers}
+%endif
+%else
+%define _build_mpfr 1
+%endif
+
+%if "%{_build}" != "%{_host}"
+BuildRequires:  %{_host_rpmprefix}mpfr-devel >= %{_mpfr_minvers}
 %endif
-# These distros ship an insufficient mpfr
-%{?el4:%define 	_build_mpfr 	1}
-%{?suse10_3:%define 	_build_mpfr 	1}
 %endif
 
 %if "%{_build}" != "%{_host}"
@@ -47,12 +84,6 @@ BuildRequires:  @rpmprefix@@tool_target@-gcc = %{gcc_rpmvers}
 
 %if "%{gcc_version}" >= "4.2.0"
 BuildRequires:	flex bison
-%if %build_f95
-BuildRequires:	gmp-devel >= 4.1
-%if 0%{?fedora} >= 8
-BuildRequires:  mpfr-devel >= 2.2.1
-%endif
-%endif
 %endif
 
 %if %build_gcj
@@ -84,9 +115,6 @@ BuildRequires:	zlib-devel
 BuildRequires:	gcc-gnat
 BuildRequires:	@rpmprefix@@tool_target@-newlib < %{newlib_version}-@NEWLIB_RPMREL@
 %endif
-%if %build_f95
-BuildRequires: gmp-devel
-%endif
 
 %if "%{gcc_version}" >= "3.4"
 %define gcclib %{_libdir}/gcc