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Merge branch '324.c89' into 'gtk-3-24'

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Fix gtk-3-24 builds on older C89-esque compilers

See merge request GNOME/gtk!2995
This commit is contained in:
Emmanuele Bassi 2020-12-23 13:45:28 +00:00
commit 138f104fa4
6 changed files with 21 additions and 3 deletions
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3
config.h.meson
View File

@ -44,6 +44,9 @@
/* Define to 1 if you have the `flockfile' function. */
#mesondefine HAVE_FLOCKFILE
/* Define to 1 if you have the `fmin' function. */
#mesondefine HAVE_FMIN
/* Define to 1 if you have the <ftw.h> header file. */
#mesondefine HAVE_FTW_H

5
config.h.win32.in
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@ -52,6 +52,11 @@
/* Define to 1 if you have the `flockfile' function. */
#undef HAVE_FLOCKFILE
/* Define to 1 if you have the `fmin' function. */
#if !defined (_MSC_VER) || (_MSC_VER >= 1800)
# define HAVE_FMIN 1
#endif
/* Define to 1 if you have the <ftw.h> header file. */
/* #undef HAVE_FTW_H */

2
configure.ac
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@ -843,7 +843,7 @@ AC_TYPE_UID_T
# Check for round(), rint(), isnan() and isinf()
# Check for log2(), exp2(), nearbyint() and trunc()
AC_CHECK_LIB(m,round,,)
AC_CHECK_FUNCS(round rint nearbyint sincos exp2 log2 trunc)
AC_CHECK_FUNCS(round rint nearbyint sincos exp2 log2 trunc fmin)
AC_CHECK_DECLS([isnan, isinf], [], [], [[#include <math.h>]])
AC_MSG_CHECKING(whether to build dynamic modules)

8
gtk/fallback-c89.c
View File

@ -126,3 +126,11 @@ isnan (double x)
return _isnan (x);
}
#endif
#ifndef HAVE_FMIN
static inline double
fmin (double x, double y)
{
return x < y ? x : y;
}
#endif

5
gtk/gtkscrolledwindow.c
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@ -48,7 +48,7 @@
#include "gtkprogresstrackerprivate.h"
#include "gtksettingsprivate.h"
#include <math.h>
#include "fallback-c89.c"
/**
* SECTION:gtkscrolledwindow
@ -3754,10 +3754,11 @@ kinetic_scroll_stop_notify (GtkScrolledWindow *scrolled_window)
static void
gtk_scrolled_window_accumulate_velocity (GtkKineticScrolling **scrolling, double elapsed, double *velocity)
{
double last_velocity;
if (!*scrolling)
return;
double last_velocity;
gtk_kinetic_scrolling_tick (*scrolling, elapsed, NULL, &last_velocity);
if (((*velocity >= 0) == (last_velocity >= 0)) &&
(fabs (*velocity) >= fabs (last_velocity) * VELOCITY_ACCUMULATION_FLOOR))

1
meson.build
View File

@ -252,6 +252,7 @@ check_functions = [
'sincos',
'trunc',
'localtime_r',
'fmin',
]
foreach func : check_functions