gfortran.h (gfc_options_t): Add flag_allow_leading_underscore.

	* gfortran.h (gfc_options_t): Add flag_allow_leading_underscore.
	* lang.opt: Add -fallow-leading-underscore.
	* match.c (gfc_match_name): Allow leading underscore in symbol
	name if -fallow-leading-underscore is used.
	* symbol.c (gfc_get_default_type): Add special case for symbol
	names beginning with an underscore.
	* trans-decl.c (gfc_get_extern_function_decl,
	gfc_build_intrinsic_function_decls): Add _gfortran prefix to
	library symbols selected_int_kind, selected_real_kind and 
	all specifics.
	* options.c (gfc_init_options, gfc_handle_option): Handle the
	new -fallow-leading-underscore option.

	* m4/misc_specifics.m4: Add _gfortran prefix to specific names.
	* m4/specific2.m4: Likewise.
	* m4/specific.m4: Likewise.
	* intrinsics/f2c_specifics.F90: Likewise.
	* intrinsics/selected_int_kind.f90: Add _gfortran prefix.
	* intrinsics/selected_real_kind.f90: Likewise.
	* intrinsics/dprod_r8.f90: Likewise.
	* Makefile.am: Add -fallow-leading-underscore to the
	gfor_specific_src files, as well as selected_real_kind.F90
	and selected_int_kind.F90
	* Makefile.in: Regenerate.
	* generated/_sqrt_c8.F90: Regenerate.
	* generated/_sign_r16.F90: Regenerate.
	* generated/_log_c16.F90: Regenerate.
	* generated/_sin_c10.F90: Regenerate.
	* generated/_tanh_r4.F90: Regenerate.
	* generated/_tanh_r8.F90: Regenerate.
	* generated/_log10_r10.F90: Regenerate.
	* generated/_aimag_c4.F90: Regenerate.
	* generated/_sign_r4.F90: Regenerate.
	* generated/_aimag_c8.F90: Regenerate.
	* generated/_sign_r8.F90: Regenerate.
	* generated/_mod_i4.F90: Regenerate.
	* generated/_cos_r16.F90: Regenerate.
	* generated/_aint_r10.F90: Regenerate.
	* generated/_mod_i8.F90: Regenerate.
	* generated/_abs_i16.F90: Regenerate.
	* generated/_sqrt_c10.F90: Regenerate.
	* generated/_atan2_r4.F90: Regenerate.
	* generated/_cos_c4.F90: Regenerate.
	* generated/_atan_r16.F90: Regenerate.
	* generated/_tanh_r10.F90: Regenerate.
	* generated/_atan2_r8.F90: Regenerate.
	* generated/_cos_c8.F90: Regenerate.
	* generated/_exp_r4.F90: Regenerate.
	* generated/_log_r10.F90: Regenerate.
	* generated/_exp_r8.F90: Regenerate.
	* generated/_abs_r4.F90: Regenerate.
	* generated/_abs_r8.F90: Regenerate.
	* generated/_sin_r16.F90: Regenerate.
	* generated/_tan_r4.F90: Regenerate.
	* generated/_tan_r8.F90: Regenerate.
	* generated/_sign_i4.F90: Regenerate.
	* generated/_sign_i8.F90: Regenerate.
	* generated/_exp_c16.F90: Regenerate.
	* generated/_sqrt_r16.F90: Regenerate.
	* generated/_conjg_c4.F90: Regenerate.
	* generated/_conjg_c8.F90: Regenerate.
	* generated/_dim_r16.F90: Regenerate.
	* generated/_mod_r10.F90: Regenerate.
	* generated/_abs_c10.F90: Regenerate.
	* generated/_conjg_c16.F90: Regenerate.
	* generated/_tan_r16.F90: Regenerate.
	* generated/_asinh_r10.F90: Regenerate.
	* generated/_abs_i4.F90: Regenerate.
	* generated/_abs_i8.F90: Regenerate.
	* generated/_acos_r10.F90: Regenerate.
	* generated/_exp_r10.F90: Regenerate.
	* generated/_acosh_r16.F90: Regenerate.
	* generated/_atan2_r16.F90: Regenerate.
	* generated/_cos_c16.F90: Regenerate.
	* generated/_mod_i16.F90: Regenerate.
	* generated/_asin_r4.F90: Regenerate.
	* generated/_anint_r16.F90: Regenerate.
	* generated/_asin_r8.F90: Regenerate.
	* generated/_aimag_c10.F90: Regenerate.
	* generated/_exp_c4.F90: Regenerate.
	* generated/_sinh_r10.F90: Regenerate.
	* generated/_exp_c8.F90: Regenerate.
	* generated/_log10_r4.F90: Regenerate.
	* generated/_log10_r8.F90: Regenerate.
	* generated/_abs_c4.F90: Regenerate.
	* generated/_abs_r16.F90: Regenerate.
	* generated/_abs_c8.F90: Regenerate.
	* generated/_asin_r10.F90: Regenerate.
	* generated/_sign_r10.F90: Regenerate.
	* generated/_atanh_r16.F90: Regenerate.
	* generated/_log_c10.F90: Regenerate.
	* generated/_cosh_r16.F90: Regenerate.
	* generated/_sin_c16.F90: Regenerate.
	* generated/_cos_r10.F90: Regenerate.
	* generated/_log10_r16.F90: Regenerate.
	* generated/_aint_r16.F90: Regenerate.
	* generated/_acos_r4.F90: Regenerate.
	* generated/_acos_r8.F90: Regenerate.
	* generated/_sqrt_c16.F90: Regenerate.
	* generated/_acosh_r4.F90: Regenerate.
	* generated/_atan_r10.F90: Regenerate.
	* generated/_acosh_r8.F90: Regenerate.
	* generated/_sign_i16.F90: Regenerate.
	* generated/_tanh_r16.F90: Regenerate.
	* generated/_log_r4.F90: Regenerate.
	* generated/_log_r8.F90: Regenerate.
	* generated/_sin_r4.F90: Regenerate.
	* generated/_sin_r8.F90: Regenerate.
	* generated/_log_r16.F90: Regenerate.
	* generated/_sin_r10.F90: Regenerate.
	* generated/_sqrt_r4.F90: Regenerate.
	* generated/_exp_c10.F90: Regenerate.
	* generated/_sqrt_r8.F90: Regenerate.
	* generated/_asinh_r4.F90: Regenerate.
	* generated/_sqrt_r10.F90: Regenerate.
	* generated/_asinh_r8.F90: Regenerate.
	* generated/_dim_r4.F90: Regenerate.
	* generated/_dim_r8.F90: Regenerate.
	* generated/_dim_r10.F90: Regenerate.
	* generated/_cosh_r4.F90: Regenerate.
	* generated/_conjg_c10.F90: Regenerate.
	* generated/_tan_r10.F90: Regenerate.
	* generated/_cosh_r8.F90: Regenerate.
	* generated/_mod_r16.F90: Regenerate.
	* generated/_abs_c16.F90: Regenerate.
	* generated/_cos_r4.F90: Regenerate.
	* generated/_asinh_r16.F90: Regenerate.
	* generated/_cos_r8.F90: Regenerate.
	* generated/_atanh_r4.F90: Regenerate.
	* generated/_atanh_r8.F90: Regenerate.
	* generated/_acos_r16.F90: Regenerate.
	* generated/_anint_r4.F90: Regenerate.
	* generated/_acosh_r10.F90: Regenerate.
	* generated/_anint_r8.F90: Regenerate.
	* generated/_exp_r16.F90: Regenerate.
	* generated/_mod_r4.F90: Regenerate.
	* generated/_cos_c10.F90: Regenerate.
	* generated/_atan2_r10.F90: Regenerate.
	* generated/_dim_i16.F90: Regenerate.
	* generated/_mod_r8.F90: Regenerate.
	* generated/_anint_r10.F90: Regenerate.
	* generated/_aint_r4.F90: Regenerate.
	* generated/_aint_r8.F90: Regenerate.
	* generated/_dim_i4.F90: Regenerate.
	* generated/_sinh_r4.F90: Regenerate.
	* generated/_log_c4.F90: Regenerate.
	* generated/_dim_i8.F90: Regenerate.
	* generated/_sinh_r8.F90: Regenerate.
	* generated/_log_c8.F90: Regenerate.
	* generated/_sin_c4.F90: Regenerate.
	* generated/_sin_c8.F90: Regenerate.
	* generated/misc_specifics.F90: Regenerate.
	* generated/_abs_r10.F90: Regenerate.
	* generated/_aimag_c16.F90: Regenerate.
	* generated/_atan_r4.F90: Regenerate.
	* generated/_sinh_r16.F90: Regenerate.
	* generated/_atan_r8.F90: Regenerate.
	* generated/_atanh_r10.F90: Regenerate.
	* generated/_cosh_r10.F90: Regenerate.
	* generated/_sqrt_c4.F90: Regenerate.
	* generated/_asin_r16.F90: Regenerate.

From-SVN: r121007

3 files changed, 14 insertions, 14 deletions

diff --git a/libgfortran/m4/misc_specifics.m4 b/libgfortran/m4/misc_specifics.m4
index dff63d8..3e40bf0 100644
--- a/libgfortran/m4/misc_specifics.m4
+++ b/libgfortran/m4/misc_specifics.m4
@@ -22,10 +22,10 @@ divert
 dnl   NINT specifics
 foreach(`ikind', `(4, 8, 16)', `foreach(`rkind', `(4, 8, 10, 16)', `
 `#if defined (HAVE_GFC_REAL_'rkind`) && defined (HAVE_GFC_INTEGER_'ikind`)'
-elemental function specific__nint_`'ikind`_'rkind (parm)
+elemental function _gfortran_specific__nint_`'ikind`_'rkind (parm)
    real (kind=rkind) , intent (in) :: parm
-   integer (kind=ikind) :: specific__nint_`'ikind`_'rkind
-   specific__nint_`'ikind`_'rkind = nint (parm)
+   integer (kind=ikind) :: _gfortran_specific__nint_`'ikind`_'rkind
+   _gfortran_specific__nint_`'ikind`_'rkind = nint (parm)
 end function
 #endif
 ')')
@@ -33,10 +33,10 @@ end function
 dnl   CHAR specifics
 foreach(`ckind', `(1)', `foreach(`ikind', `(4, 8, 16)', `
 `#if defined (HAVE_GFC_INTEGER_'ikind`)'
-elemental function specific__char_`'ckind`_i'ikind (parm)
+elemental function _gfortran_specific__char_`'ckind`_i'ikind (parm)
    integer (kind=ikind) , intent (in) :: parm
-   character (kind=ckind,len=1) :: specific__char_`'ckind`_i'ikind
-   specific__char_`'ckind`_i'ikind` = char (parm, kind='ckind`)'
+   character (kind=ckind,len=1) :: _gfortran_specific__char_`'ckind`_i'ikind
+   _gfortran_specific__char_`'ckind`_i'ikind` = char (parm, kind='ckind`)'
 end function
 #endif
 ')')
@@ -44,10 +44,10 @@ end function
 dnl   LEN specifics
 foreach(`ckind', `(1)', `foreach(`ikind', `(4, 8, 16)', `
 `#if defined (HAVE_GFC_INTEGER_'ikind`)'
-elemental function specific__len_`'ckind`_i'ikind (parm)
+elemental function _gfortran_specific__len_`'ckind`_i'ikind (parm)
    character (kind=ckind,len=*) , intent (in) :: parm
-   integer (kind=ikind) :: specific__len_`'ckind`_i'ikind
-   specific__len_`'ckind`_i'ikind` = len (parm)'
+   integer (kind=ikind) :: _gfortran_specific__len_`'ckind`_i'ikind
+   _gfortran_specific__len_`'ckind`_i'ikind` = len (parm)'
 end function
 #endif
 ')')
@@ -55,10 +55,10 @@ end function
 dnl   INDEX specifics
 foreach(`ckind', `(1)', `foreach(`ikind', `(4, 8, 16)', `
 `#if defined (HAVE_GFC_INTEGER_'ikind`)'
-elemental function specific__index_`'ckind`_i'ikind (parm1, parm2)
+elemental function _gfortran_specific__index_`'ckind`_i'ikind (parm1, parm2)
    character (kind=ckind,len=*) , intent (in) :: parm1, parm2
-   integer (kind=ikind) :: specific__index_`'ckind`_i'ikind
-   specific__index_`'ckind`_i'ikind` = index (parm1, parm2)'
+   integer (kind=ikind) :: _gfortran_specific__index_`'ckind`_i'ikind
+   _gfortran_specific__index_`'ckind`_i'ikind` = index (parm1, parm2)'
 end function
 #endif
 ')')
diff --git a/libgfortran/m4/specific.m4 b/libgfortran/m4/specific.m4
index c8c9152..ebc8983 100644
--- a/libgfortran/m4/specific.m4
+++ b/libgfortran/m4/specific.m4
@@ -7,7 +7,7 @@ define(get_typename, `get_typename2(ifelse($1,i,integer,ifelse($1,r,real,ifelse(
 define(atype_name, get_typename(atype_letter,atype_kind))dnl
 define(name, regexp(regexp(file, `[^/]*$', `\&'), `^_\([^_]*\)_', `\1'))dnl
 define(rtype_name,get_typename(ifelse(name,abs,ifelse(atype_letter,c,r,atype_letter),ifelse(name,aimag,ifelse(atype_letter,c,r,atype_letter),atype_letter)),atype_kind))dnl
-define(function_name,ifelse(name,conjg,`specific__conjg_'atype_kind,`specific__'name`_'atype_code))dnl
+define(function_name,ifelse(name,conjg,`_gfortran_specific__conjg_'atype_kind,`_gfortran_specific__'name`_'atype_code))dnl
 
 define(type,ifelse(atype_letter,l,LOGICAL,ifelse(atype_letter,i,INTEGER,ifelse(atype_letter,r,REAL,ifelse(atype_letter,c,COMPLEX,UNKNOW)))))dnl
 define(Q,ifelse(atype_kind,4,F,ifelse(atype_kind,8,`',ifelse(atype_kind,10,L,ifelse(atype_kind,16,L,`_'atype_kind)))))dnl
diff --git a/libgfortran/m4/specific2.m4 b/libgfortran/m4/specific2.m4
index fa26f39..d05e8db 100644
--- a/libgfortran/m4/specific2.m4
+++ b/libgfortran/m4/specific2.m4
@@ -6,7 +6,7 @@ define(get_typename2, `$1 (kind=$2)')dnl
 define(get_typename, `get_typename2(ifelse($1,i,integer,ifelse($1,r,real,ifelse($1,l,logical,ifelse($1,c,complex,unknown)))),`$2')')dnl
 define(atype_name, get_typename(atype_letter,atype_kind))dnl
 define(name, regexp(regexp(file, `[^/]*$', `\&'), `^_\([^_]*\)_', `\1'))dnl
-define(function_name,`specific__'name`_'atype_code)dnl
+define(function_name,`_gfortran_specific__'name`_'atype_code)dnl
 
 define(Q,ifelse(atype_kind,4,F,ifelse(atype_kind,8,`',ifelse(atype_kind,10,L,ifelse(atype_kind,16,L,`_'atype_kind)))))dnl